1. Beautiful scene and nice vibrant color, but your horizon is a bit tilted.
2. As it is, I don't find this to be very interesting. The glare of the sun on the left, the diagonal vapor stream in the sky and the lack of detail in black bottom just don't mesh for a pleasing scene in my opinion. I think if you cropped off the sun glare from the left that it would make a better photo because the eye would then be drawn more to the nicely colored sky and the tree in the bottom right.
3. Beautiful! Love it! Nicely done. :thumbup:
4. I like this, but for me, I think it would have more meaning and simplicity as a photo if the white building were cropped out...leave the two trees to the right of the building though.