Background image: Nick Hiatt https://www.artstation.com/artwork/6N6P5, Helmet:Casey Young https://www.artstation.com/artwork/zbrush-sci-fi-helmet, Armor: http://www.leewiart.com/space/8265.html, Arm: https://silverspar.deviantart.com/art/Two-futuristic-robotic-arms-662088499