Very creative, I would never have been able to pull this wonderful idea off, yet I find time to pass judgement ... ummm, anyway ... the shadows are okay, my only real complaint is the loss of definition of the two pods due to the bright lighting. Really i love this, good luck.
Clever take on the challenge theme. Plenty of "peace" going around, but not as you've done. Potential stock sales with this one I would think as well. Normally I would say the lighting is a little harsh, but the shadows actually work to fill in the lines of your "drawing" here. Should do well with this. Good luck.