bting, don't mind if I make some observations.
#! - Slightly underexposed.
#2 - Can pp the trees to a little more white to give a contrast to the dark sky. Add a slight S curve would be better.
#3 - Bring up the shadows in the flats on the left. Tilted Pic.
#4 - Underexposed also. Do a Levels or Auto Levels before channel swap should help.
#5 - I like this one of the lot for composition. But would clone away the leaves on the right.
Sorry I kapo hor, but those are my opinions. Can post your unprocessed for #3 to let me try?