Here is the first stage of my Art War entry.
The character is named Chroma, and she is the princess of the astral elves. I'm going to make every aspect of her have a sort of color-shift, trying to somehow integrate a sort of glimmering rainbow effect on her dress, hair, and skin. I'm going to go as crazy with it as possible, like over the top bright and colorful. She's also going to be emitting spectral rainbow magic from her hands and eyes. She will be "saving the art world" by injecting color and brightness into the dark, gray world around her.
In the background, I'm going to keep it dull and use some very rigid mechanical designs (so fantasy good vs sci-fi evil) and have her being assaulted by robotic adversaries, but they will not be able to come close to her magic.
PS: I do have a preliminary character sheet, but it's on paper and I can't be bothered to upload it yet. It's sloppy and bad, as all my "traditional" art is, so you're not missing much
EDIT (forgot this) : ------------------------------------------------------------------------------------------------------------