What are you trying to do? The subjects(?) seem a little distant and not really isolated to make them stand out in the picture. Try to get a better angle and a better light on the main subject for starters. good Luck!
I like the perspective and composition in #1, but the foreground is under-exposed. Try shooting this at a different time of day (earlier/later) and using a polarizing filter to enhance the sky.
#s 2 and 3 don't really work for me I'm afraid. #2 has too much in the foreground, and #3 seems to lack a subject.
I think the biggest issue with one and two is that you shot when the sun was seemingly completely behind the clouds. The weak lighting took a lot away from the shots. With number two, there's some distracting objects behind the subject and it has the same lighting issue. A reframe and more sunlight would help. Three just seems too cliche to really become a good shot.