*edited to add:
I'm SO bummed! On my husband's computer, the black looked completely black, but here when I check it on my laptop, it's much lighter! Boooooo. I'm gonna have to make him fix that...there's a word for it...color calibrated maybe???
Well this one really made me chuckle!! What a great idea, good use of negative space and the thumb is lit nicely :o) I have to agree some calibration maybe needed on your husbands computer as the background is not completely black but excellent attempt :o)
the black is beautiful here. huh. looks fantastic. well as fantastic as a thumb can be. ummm. its sharp. good color. lol. cant really figure out what else i can say about your thumb. ;p