This is a really amazing drawing, and the background and lighting, wow. It's just... I wish I could do that xAx
One thing I could say, though, is the the body seems a bit too long in contrast to the head, and the back paws look a bit twisted toward us. And the tail seems a bit too long.
Now, I've just got the say, the fire looks awesome, because the colors are just right, and it looks so.... Bright! And the eyes are colored really well, too. You didn't just use a plain orange and yellow, but the eyes are just so... luminous! I also love the stars, because the colors. GAH! X3
Anyways, this is an amazing piece, and I think my favorite part about this is the coloring :3