Hi Smith. You seem to have covered all the bases here. For learning that is. You're drawing your learning base from life, books, imagination and the support of other artists. It's nice to see someone learning the real life anatomy of animals before going into imaginary ones. This is a smart move on your part. Not everyone does that here. You're also covering values and human anatomy. Something I don't see is, backgrounds and scenery, trees, building, etc. You might want to add them to your list of things to learn, just to round out your artistic abilities. Also, have you tried color yet?
Keep up the good work. You have some nice stuff here and I think you're well on your way to becoming a very good artist.
Art gives me a life of extreme challenge, frustration, accomplishment and contentment. Nothing less will do!