Lemme just say....National Geographic has loads of great photos on their site to draw from.

Another!

A sketchbook doodle that grew over the course of several days, and finally into photoshop for an evening coloring sesh. This pair travels through dreams of children, confronting and driving off their nightmares. The little girl, meanwhile, continues on her search for an outfit whose color better matches her steed (which, Alex pointed out, is clearly a sabertooth bisonlion)...