p.1 #5 · Zion Subway "The Crack" - New Image added
Nice image of that crack, Bob. Even with a polarizer, it's good to block light coming from behind you with a jacket or have a friend help with it. Perhaps a little lighter tones on the rock and try bringing out some of the white in the water to make it the center of attention.
p.1 #7 · Zion Subway "The Crack" - New Image added
The reflections themselves don't really bother me, but if it were my shot, I would desaturate the blue channel to make the water and reflections look more neutral. Shouldn't affect the rest of the image as there's not much else blue there. Just my 2 cents worth.
Greg