Let's focus a bit. There is a lot going on in these photographs. Some good, some needing improvement. You guide us. What are you looking for on a more specific level.
You see, when you say you are new we should focus on certain things first. Let's say composition, or exposure, or aperture setting, just to name a few.
They are good, don't get me wrong. It's just that we should focus on certain aspects instead of a blanket statement like this because you are new.
While there are no rules (even when they are called rules) in photography, there are really good guidelines.
Also, you need to include shooting specifications for each photograph. Like, camera body and lens used, shutter speed, ISO, etc.
So, with this said, I'm going to leave number 1 alone for now. Number two is over exposed. It's just too bright. Number 3 is under exposed. I like the contrast, but too much detail is lost in the shawdows.
-Nick