wow, these are great. you must have put a lot of time into them. have you heard of hyperbolic crocheting? i saw an exhibit of it at the Andy Warhol museum in Pittsburgh. it was amazing. a mathematician used crochet to model hyperbolas, then organized a project to make a coral reef model completely out of crochet.
heres a link: http://theiff.org/reef/index.html
it made me excited to learn how to crochet.