I created a couple of Anthro Supervillains partly inspired by your drawings, the Seven Deadly Sin Girls...I kind of use some of the Animals you chose the only differences are Gluttony is Grizzly Bear (Mostly because I think Bears are sexier then pigs also...No awkwardness about serving pork) Wrath is Crocodile and Sloth is a well...Sloth of the three toed variety.

Also, I include the obscure concept of the Eighth Sin of Despair, this is something of an unknown concept outside the Christian Orthodox Church which is why in a lot of old Russian novels you find people referring 'succumbing to the eighth deadly sin'

For Despair, the only thing I could think to represent was a Raven, mostly because it is traditionally an omen of death and Edgar Allen Poe helped add to the Bird's creepy image

Sounds cool :)

Thanks!