[Master of Nothing]

Lol, I suck at anatomy, but I thought I'd try and help.
Here are some tips, you don't have to follow them and I'm no professional, but this is what I would do.

Put less fur on the chin area.
Put less shine in the eyes; one or two shine marks are ideal in my opinion.
Make the ear longer.
Put more fur on the top of the head.
Vary the direction of the neck fluff.
Show a bit of the legs.
Make the back more curved.
Use smoothing (from 50-80 is best).

Now, these are just small details, so be proud! You're a great artist!