I would recommend getting onto a photography Forum, try and find a special interest one if you like taking certain photographs, I like
Macro &
Nature Photography mainly there are two good forums as examples, although probably not your area of interest.
You will learn a lot just looking at photographs and reading articles, you can get your photographs critiqued. I must say My Photography interest comes and goes, I have not taken serious photographs for a little while, but here are a few of
my Photographs if you are interested.
With respect to the photographs I assume you are using Digital, you need to be careful of exposure levels, all of the whites in your first 3 pictures appear to be blown out, do you have a histogram function on the camera I find it invaluable, if you are in doubt try and under expose, you can recover under exposed photographs in photoshop or similar, but if you go over you can not.