This image is a screenshot of, or official artwork for, a copyrighted video game, and the copyright for it is most likely held by the company or person that developed the game. It is believed that its use here constitutes fair use, given that:
it is used in a non-commercial setting, and therefore is not being used to generate profit in this context
its use here does not significantly impede the right of the copyright holder to sell the copyrighted material
it is used in a largely unaltered state, where any editing has been done purely for cosmetic/display purposes
the original content of the image has not been modified, and it is not a derivative work
