my inspiration was a manicure done by my friend eve, in which she layered black widow over a nude polish to create the effect of a nude slip dress topped with a black mesh, lace, and sequined overlay. her mani was far superior to mine though - i did 3 or 4 coats of the sw, but maybe i should have done even more!
here's a close-up shot of black widow so you can see all the various kinds of glitter it contains: black regular glitter, silver regular glitter, and black bar glitter: