Congrats, that's a great looking boa.
Yeah, there is a HUGE variety of rosy boa localities and morphs.
You'd probably find the rosy image project to be useful. 700 images of rosys from 100 different localities or morphs.
Bay of LA (also called Bahia de Los Angeles), is the first group on this page:
http://borderboas.com/localityrosys/Mexican/index.html
Enjoy!
Josh
Rosy Image Project

