I would definately like to try that kind of a trip! You're lucky!
To the shot:
I guess you used some fat zoom lens, cause being in a short distance with these guys is not really safe ...
The composition is good enough, or I have to say that atleast it's not basic . I know it's a pain to get a quality photo when youre running out of time, but in this case I would recommend comp. with bear much more on the right. But for sure it's very subjective .
Colours are amazing in my opinion. The time right before sunset, is the time where colours are comming up, so it was a definately good choice to take it like that .
I won't comment on the animal, cause it's kinda awesome, and I'm jelaous .