How could I improve my photography further?

As always, you are doing an excellent job. It's good to see your work has not diminished. However I do think you need a little more rule of thirds practice, you are still centering some of your subjects. While breaking the rules is important and a good thing, a lot of the photo's you've shown us would have been better if you had followed the thirds rule.

I would also suggest trying a different format or ratio, I cannot tell for sure but it looks like the 2x3 fx or dx. I'm guessing full frame fx. While that is wonderful ( 35 mil kicks butt) you might have a more awakening experience with shooting 4X5 or 3X4. Many digital camera's are able to crop to these formats, or you can do it in post too. Of course the end of the road in normal photography is to shoot in 4x5 medium format film, but that is not what today is all about.

Try Trick Photography Special Effects : http://tinyurl.com/SaKCxqVivE

Wow your photography is beautiful! :)

I think maybe you should try taking people? Or like animals?

I'm not sure what to say :)