I like the first one. The people in it do not bother me, but I don't like the cars being in the background. Can you clone those out?
I don't mind either the cars or people in the first one, but I think the composition would have benefited from putting the shoreline much lower in the frame to include more sky and less water. It's a very dull, grey light one gets on an overcast winter day, but there is still some texture in the clouds that might be more visually interesting than the water and could be emphasized.
Now wondering...were you trying to include the reflection of the trees in the water? Also, are you able to kick up the brown/orange in the leaves?
Is this image cropped? Wondering if you actually have more sky in the original (what Limr said).
Nice job with the edits. I wonder if the angle of the grass should have a bit of green reflection in the water (just being picky). Watch that anything you remove that you also remove it's reflection.