I really think you captured the character of the lion well here. That face tells a powerful story. Agree on the noise reduction for the BG but you might want to consider desaturating the green too.
Wonderful portrait of this old man. Sad to see all the battle scars, but I guess he was lucky and well established so scars are the way of life and proof of his success. Wonder if the right eye was injured? Gosh, tough life and other than the suggestions from Fabs, Robert and Dave, you have captured the essence of his majestic aura perfectly. Congratulations! :)
Ken,
The first post had too much of saturation. The greens were unnatural. The repost looks better. This would have worked as a vertical as well. The lions face shows lot of character. Thanks for sharing.
Cheers,
Sabyasachi
Second post is much better. The suggestion of vertical is a good one. Perhaps crop with just a bit of space on the right so the Lion is looking into the frame a little.