Oh my, your pace of improvement start to scare me... :icon_eek:
Then again you can expect a steep learning curve from a person who is using programs immensely more advanced than PS on a daily basis.
Some lack a bit of flow (2nd really needs some along the arm, really subtle though and fitting the background). Also, the poking-out things in 1st, 2nd and 3rd (gun, hand, gun) could do a bit more blurring, as they are much closer to viewr than the rest. They seem to be blurred already, but at least the 1st should be blurred a bit more in my opinion.
The way the text (main one, get rid of the smaller text) is interacting with the render in 2nd.
I like the background effects in 3rd, but the focal isn't standing out as well as it should. Try darkening the sides a bit to draw more attention to the guy.
4th is a win. Simple, but win. A simple win. Well, you get the idea. Didn't understand the idea of it, though, but anyway...
5th just looks amazing. Yet I first thought it is an abstract, since itš quite hard to tell what exactly is there.
I just don't like 6th, too colorful to my liking. Text needs a bit more standing out colors. The placement and style is very good.
I don't know why I don't like 7th. It looks very good but I just don't feel it. It's a bit more boring than your other works. Nevertheless, it's very well and neatly done, nice colors, good flow, etc, except that the light source is a bit too bright and is creating a second focal.
Writing long text about other people's work is much more fun than making something myself.