It is quite obvious which fisherman :p
How about moving the image a bit to the right, to get a more interesting composition? And instead of going brighter, you could also give him a red suit. That could work quite realistically, and it defenitely makes him stand out...
Play
Oh, and also, you might want to play with the angles of your waterfalls. It would be strange if they were all pointed to the camera, and it especially annoys me on the middle one of the set on the left.
Quick NPA composition edit:


