This mascot isn't very fun. He's just kinda... blah.

I like the humanoid bear with muscles concept though.

If I could draw here's what I'd do...

Muscle bear facing straight... he's slightly leaning forward with his right leg out past his left and holding a barbell... arms somewhat bent and the barbell is near his waist and away from body... barbell possibly bent on both sides from so much weight... instead of an expected cringing look on his face, he's got a "hey there, sexy" look.

Could even take it once step further and have him holding the bar with his right hand and grabbing his crotch with his left hand.

I dunno... looks good in my head.