Just dinking around with some of the existing designs while coming up with a few new ones. I hope it's okay for me to post 'em here.
I'm waiting patiently for MCAnimator to update because they said there'd be a bug fix that would allow me to run it. I'll probably model these then.
These look pretty realistic, but they don't really fit the mod, IMO. I think these are more suited for Paleocraft. You should show these to Dan_Wallace. Maybe he'll let you join the mod team. I preemptively apologize for the preceding plug.