Mars colony concept by Dmitry Azarov for National Geographic's MARS TV series

Russian 3D artist Dmitry Azarov has made some concept renders of human colony on Mars for National Geographic's "MARS" TV series (season 3 ?). More of his art here.

Underground atrium on Mars by Vincent Callebaut

Picture of the Day 10/6/2019 - design of what could be an interior view of an underground atrium on Mars by French eco architect Vincent Callebaut. This image was done for a design project "Wooden Orchids" of an eco-responsible shopping mall in Ruichang, China.

Human colony on Mars for Buzz Aldrin's "Welcome to Mars" book

Impressive cover art of human colony on Mars with several domes and parks for "Welcome to Mars: Making a Home on the Red Planet" book for kids. It was written by Marianne J. Dyson and Apollo 11 astronaut Buzz Aldrin (2nd on the Moon) and published in 2015 by National Geographic Children's Books.

Mars colony by Space is More & Project Scorpio for Mars Colony Prize contest

This year The Mars Society is holding Mars Colony Prize - a contest for "the best plan for a Mars colony of 1000 people. The colony should be self-supporting to the maximum extent possible - i.e. relying on a minimum mass of imports from Earth. The goal is to have the colony be able to produce all the food, clothing, shelter, power, common consumer products, vehicles, and machines for 1000 people, with only the minimum number of key components, such as advanced electronics needing to be imported from Earth." Submissions for the contest are now closed and the winners will be chosen at the International Mars Society convention in Los Angeles, California in September 2019.

Here are images from the submission by the Polish team of Space is More & Project Scorpio.

Green Marsopolis by Annibale Siconolfi (Inward)

Cityscape of green Marsopolis with parks and large biodomes - a city on Mars in a far future by Italian futuristic 3D artist Annibale Siconolfi (Inward). More of his art here.

He has made also a different version - a bit depressing industrial Red Marsopolis.

Red Marsopolis by Annibale Siconolfi (Inward)

Cityscape of red, industrial Marsopolis - a city on Mars in a far future by Italian futuristic 3D artist Annibale Siconolfi (Inward). More of his art here.

He has made also a different version - Green Marsopolis with parks and large biodomes.

1 million human colony city on Mars by Max Rymsha

On 2017 HP announced the "Mars Home Planet" rendering challenge inviting participants "to imagine, create and virtually experience a sophisticated civilization on Mars. A new home for one million humans." Swedish architect and CG artist Max Rymsha was one of the winners of the challenge creating his concept "Between The Red Mountains" for a sustainable city on Mars for 1 million humans. His inspiring vision includes several large-scale biodomes, SpaceX's Starships (in their 2016 design) for Earth-Mars transportation, hyperloop lines for intercity transportation, electric rovers and quadcopters for local transportation, laboratories of NASA, etc.; most of the city (not shown in the illustration) is underground for better radiation and asteroid protection.

Infographic version with annotations:

Mars colony by Alexey Shugurov

Picture of the Day 4/4/2019 - Astronaut trying to charge his ATV near a futuristic human colony on Mars by Ukrainian fantasy and space artist Alexey Shugurov. More of his art here.

Mining colony in a Martian crater by Johannes Ewers

Picture of the Day 28/3/2019 - Mining colony in a Martian crater by German digital artist Johannes Ewers. More of his art here.

Closeup of the colony:

Forest under a dome by Artur Rosa

Picture of the Day 24/3/2019 - Forest with a lake and human colony under a dome on Mars by Portuguese digital artist Artur Rosa. More of his art here.

New official renders of SpaceX Starship landing at Mars Base Alpha

Today Elon Musk visited Doyle Ryder Elementary school in Flint, Michigan and demonstrated a new video of SpaceX's Starship. Here are some render images from that presentation with Starship landing at Mars Base Alpha. Forgive the poor quality of the images as they were captured by a camera; we will definitely get better quality official renders in the future.

Mars colony city by Bill Wright

Picture of the Day 6/3/2019 - Mars colony city under a dome by American retro space artist Bill Wright. More of his art here.

Mars dome interior by John Berkey

Picture of the Day 15/2/2019 - retro-futuristic illustration of what could be an interior view of a dome on Mars by classical future and space artist John Berkey. This illustration was done in 1975 as one of Otis Elevator Company adds. More of Berkey's art here.

Colony on Mars under plastic domes by Chesley Bonestell

Picture of the Day 3/2/2019 - "Colony on Mars under plastic domes" by classical space artist Chesley Bonestell, dubbed as "Father of Modern Space Art". More of his art here.

Mars colony dome painting by Blackbird Interactive

Picture of the Day 24/1/2019 - painting of Mars colony dome by Canadian game developer Blackbird Interactive (Brennan Massicotte) for its "Project Eagle" - a 3D interactive Mars base free to play on Steam and developed in collaboration with NASA’s Jet Propulsion Laboratory. The interactive base is intended as NASA's vision of what a human base on Mars would look like in 100 years.
Here are HD images from the project.

(Open link in new tab to view ⇩ in full resolution)

SpaceX spaceport on Mars by Mike Winkelmann (beeple)

Picture of the Day 20/1/2019 - vision of a futuristic SpaceX spaceport on Mars by digital fantasy artist Mike Winkelmann, better known as beeple. More of his art here.

(Open link in new tab to view ⇩ in full resolution)

Farming in a dome on Mars by Mike Kiev

Picture of the Day 19/1/2019 - farming in a dome on Mars by Ukrainian photographer & illustrator Mike Kiev. More of his works here.

(Open link in new tab to view ⇩ in full resolution)

Closeup of the colony town in the background:

Mars colony apartment block

British The Sun has published an article what the human residences on Mars could look like by 2050 with architects and scientists prototyping several possible types of homes for would-be Martian colonists. All the designs are meant "to protect interplanetary homeowners from hazardous cosmic rays, space radiation and Mars' severe dust storms, as well as insulate them from the cold."

Here are images for the 2nd design - apartment block covered with Martian regolith.
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Interior of one of the apartments:

Concept art from "Dome City" - cancelled VR adventure game set on Mars

"Dome City" was a space adventure video game project with multiplayer (rarely seen in adventure games) and virtual reality support. It was developed by a small indie game developer "Overon Station", relaying on a (unsuccessful) crowdfunding campaign on Kickstarter, and never left past the pre-Alpha stage. In the game three young characters would be stranded fighting for survival in a domed city on Mars abandoned for 100 years. Sad the game didn't saw its release; the concept was interesting.

Here are some concept art images and a teaser for the game project:

Mars colony by Bill Wright

Picture of the Day 16/12/2018 - Mars colony by American space artist Bill Wright. More of his art here.