Kali body armor concept, Serge Birault on ArtStation at https://www.artstation.com/artwork/4dd5k
pixiv is an illustration community service where you can post and enjoy creative work. A large variety of work is uploaded, and user-organized contests are frequently held as well.
Using Tai Chi to calibrate your robot
Rainbow x Six x Siege - Imgur
CGI design of Ava by Karl Simon for Ex Machina
Myriad: Character Design, John Grello on ArtStation at https://www.artstation.com/artwork/GkqeQ
ArtStation - CyberWarrior, Sandra Posada
Sci-Fi 2 by IIDanmrak on DeviantArt