What I did to teach myself how to take better pictures is to work with the background. You're already doing so, but keep the Rule of Thirds in mind. In the very first photo, you have two subjects, the car and the city in the background. Both are somewhat far apart from each other which makes viewing the picture hard - and then there is this open space half-way down the picture contained with nothing interesting. You want to shoot the picture with all subjects near the center.
Here's a tip, when you find a picture you like and you're about to shoot, aim the camera up a little bit and take out as much ground as you can. The sky is much more appealing to the eye than the ground.
You're doing very well for your first time though. I believe I was worse. Just keep trying and learn from other people's photos.
If you don't mind, I can show you some examples, or you can go to my Profile -> Album