Yeah I always struggled with shading, probably still do I'll have to see. I can see the shading but it is far too faint. It needs to be quite obvious just like in real life. Imagine the sun was out - it would cast a shadow under the tail, legs, belly, neck, ears and even the whiskers. It will enhance the picture no end and give much needed detail.
Personally I'd like to see more in the description too. Its great that you've described the differences but why have they changed? Whats the point of the tail and why have the ears become more pointy? If you explain these things it might be more likely that someone will want to evolve the Morokar further. I would like to do it myself but it's normally the description I look to for clues of how it might evolve and there isn't much to go on here at the moment.
This is all constructive criticism. You're drawing is good, nice outline of the jaw and detail on the ears. I would love to see this accepted