That's exactly right!!! SpiffZaya was telling how it was a concept art but never actually made it into the game. I haven't personally seen the art, but the amount of detail in the costume is superb. Sorry you missed it.
I do have more, i just haven't finished them yet. I'll be sure to upload them to my DA account as I complete them. Spiff is very dedicated to cosplay. She often makes her own original designs, so I'm sure her creativity and attention to detail allow her to create costumes based on little information or just a few sketches.