cancerous doggo

I haven't done a critique in a long time ^^' I hope your not offended

It's really nice overall. The lines are clean and smooth, the shading is great!
The colors are nice also.

The thing you have to work on are the anatomy, the ears are tilted a bit to forward for them to be facing back, the legs a bit too thick. The body is too thin and straight, it should be thicker around the chest/torso area so that it has more of a natural look.

For your shading, maybe put the lighter shading on the lines to give a more shinier look.

I hope this is useful ^^