Hunting Fox

I drew this with two references. One was a picture of a real fox, the other was of my brother's dog playing outside.
This is a red fox stalking his prey. Probably a nice juicy vole.
My brother's dog rears and slams his paws down, then digs when I shine a laser on the rug, or when he has a toy buried in the snow.
Foxes sometimes hunt in a similar way, hence this pic.

It's my frist attempt at a realistic fox, so please be kind.