.August~
It looks great!! Wow!!
One thing to say, the hind leg closest to us is a little short. So when it landed on the ground it would be uneven to the rest.
Any attempt by me to redline that would be a failure ;.; XD
Also, the front leg away from us, that paw should be on the ground, unless your dude is going for a barrel role

(I tried to find a ref for the front leg, but I couldn't, so do forgive me if I'm wong, however, I do feel that that paw should be on the ground

)
Gail~
He's cute!
However, from my experince with bears (Which doesn't exceed much more then documentaries, so pardon me again if I'm wrong) bears usually don't sit that nicely.
Here's one of a fella sitting down
D'awwwYea. Bears just don't sit very nicely. At least not for cameras XD
Don't ever be afraid to totally do wild and crazy poses!! They're awesome!! References are great for them too~
Would you like a redline? I'm obviously not the best person here, but I could help you~
Neelix~
Yea for your choir duet thing!!

I'd take that though to the made up species thread ^.^