First off, love this! And I don't know the artists reasons but when I see the blue/red shift it tells me that there is an illusion of more depth. In design, cool recedes, and warm advances. But thats just my observation.
I would for sure show you! I'm just thinking of starting to get into cosplay, I've done some cosplay photo shoots for others (me taking the pictures) and it looks fun! I will post and send a link when it happens