Well, i've saw the contest today ( Last day of the deadline ) and i decided to give it a shot.
I'm a really bad with colors, so i decided to post a greyscale:
And a colore version:
The concept is cave troll being exposed in a modern museum.
Edit: I tried to upload as a attachment, but for some weird reason, it asks for a 940x0 image size, so I linked it with imgur. Just click on the little icons that it will open the image.