Be sure you check out KittyHawk's external sketchblog and her webcomic, Sparkling Generation Valkyrie Yuuki. She's the one who made the sketch I traced to make the color pic, and the characters in the pic are from her webcomic, so you're sure to enjoy her other works! There's even a deviantArt fangroup:
If you don't mind me asking, how did you come across my deviation?