Interesting roleplay sample, sir. However, if you truly wish to become even more skilled in the arts of such literature, first thing to do is know what terms you're using and what they actually mean. If you don't, you'll be criticized and labelled as a 'wolfspeaker'. Besides, why use terms that mean little to nothing to what you actually refer to it as? The result will be a confused reader.
If you wish to enhance your vocabulary, look here (http://thesaurus.com/). It'll help you use terms that are of the English language and make sense.
If you wish to enhance your anatomy, I'd pull up a reference via Google such as this one (http://museum2.utep.edu/mammalogy/images/mammskel.gif) for example.
Just remember, roleplay is similar to a story book. It'd be nothing but a waste of your time to sound as intricate as possible via vocabulary terms when those reading understands little to nothing of what you say. Which will result in hatred more than anything. Take it from someone who experienced all of this personally.
I wish you luck and it'd be wise to heed my words sir.