Keep in mind, it all depends on the type of bear you're referencing, they each have their own separate qualities other than fur color.
Ref photo
Bears have a round face, so it's up to you of course, but I'd round the muzzle slightly, and rather than having the fur tufts sticking up I'd round them down! It'll help it look more bear-y. The tail also doesn't show as much, since they have naturally cropped tails. Most of the time you don't see the tail unless you're seeing their tail-side
![Laughing :lol:](./images/smilies/icon_lol.gif)
So this part I'm adjusting since I noticed it after the fact, but no need to edit the other paws at all, just the one I did if you choose to. It just helps with angle and aesthetics.
Now for the back! You've got it down, and it's all up to you, but you can make that first shoulder "larger", it'll make it look more like a brown bear, or in general adjust the head since it tends to be equal or lower than the back line.
Your art is stunning btw! I hope I didn't tear into it too much!!!!
TDLR: you're a-okay if you don't want to edit, but if you really want specifics, just crop the tail and round the nose and you'll be a-okay.
If you need some more reference photos look up Bearizona! They might have some good ones on their site, it's a cool place too.