Yay! you really are improving! The only problem I see (I didn' include in my tutorials) is that the begining of the tail should be thicker than the end, but anyways I LOVE the end of the tail! Your welcome for the References!

It's great, I like how you did the claws, and the shading is really good

very very cool and awesome; I like the end of the tail, I've never seen it draw that way and it looks really great!