Louis, your stark processing makes for a dramatic view of both the bison and the Tetons. Getting the front Bison with it’s tongue out is a neat extra. The view would be more dynamic if the Bison were not centered in the frame.
In general I am not a big fan of bisons (saw too many in yellowstone np ) but in this picture he looks great, really powerful and menacing, especially with the tetons in the background. I would crop a little from the left side as then it would seem like he is walking directly towards us and it would leave him room to move on the right. Great capture.