Our yeti artwork was done by Olivia Healy-Mirkovich.
She does amazing artwork. No really, look: pomofo.tumblr.com
Basically she does things of a professional capacity, is intensely trained, and continues to intensely train in the art field and the work she does backs that up. A lot of death, destruction, fuzzy animals, feminism, and humor. Drop by her Tumblr page and let her know how awesome she is.