Nice one. Reminds me of the film, "Bedknobs and Broomsticks."
http://ichabodisitchy.files.wordpres...6/06/34bed.jpg
I personaly think modeling the clothes would look better than texturing them on. Though if you bump map it well it should look ok.
You could do one big scene with a whole team of rhinos and use all your ideas for poses together.