#1 Lots of empty space on the right that make the image feel very unbalanced. Also, I'd like to see more detail in the leaves to the left. I think a tall crop would be more effective. Just crop out the entire right half and play with curves to get more detail in the shadows.
#2 Again, there is a lot of empty space at the bottom. Not completely empty of course, but it's a distraction. I think I would also lose the dark blob of branches on the right. It seems out of place in relation to the subject and is a distraction. The sole attention should be given to the beautiful refractions in the ice.
I don't like the B&W at all. The small bits of red mixed in with the large field of blue is an nice contrast and I think you lose part of the effectiveness of the image when you take away that contrast.