I think that a page of each would be the best, but if anything you could combine your antro/feral forms together on one page; but eon riley should be her own seperate page. While I think that the flash would be really interesting it would also be hard cause if it as to be moving then..well it would be distracting so thats my opintion!
I will admit though...a flash interface would be cool to do, especially if you animate her transformation from one form to another...
I remember this one music video where there are people walking toward the camera, and their morphing into other people, and I think a centaur was thrown in there for good measure...I could see a Riley reference sheet doing a similar thing...that and it would be DAMN cool to look at.
My two cents...donate the change to needy Pokemorphs everywhere. ^_~
--Brother Abram "Today's theme...is constant interruptions..." - Robaire Robesean..."Not In The Mood"