I like the tonal range you have achieved in this by drawing the curtain :) lots of greys, that's where its at. I think this would make a good monochromed shot if you upped the brightness just a little for the shadows. great work. I wonder where you are going to go next :)
This looks like fun, I bet you had a great time taking this picture, you captured it well. I especially like the red thing in the middle on the bottom, I just don't know what it is?