Here is some CC OP (Sorry if this is not welcome, I usually don't offer CC unless its specifically asked for but since one of your posts seemed to ask for it I figured I'd offer
)
Pic 1 - I love the sun and the colors on the water, although the water is slightly underexposed you'd be hard pressed to get this shot without that happening due to the brightness of the sun. The only thing that ruins it for me is the rail in the way.
If it was possible to get above the rail and only include a small part of it it would work or just stick the camera through the rail and just get an ocean/sky shot. (This leaves out a foreground element but in this case I think it would be better than including the rail).
Pic 2 - I like the look of this one, but something about it just isn't visually interesting to me. Maybe if there was a tighter crop by taking some off the top and some off the bottom it would improve the look. This one really needs some sort of defined subject (I can't tell if the subject is the cloud, the reflection on the water, or the ship windows).
Pic 3 - This one looks more like a shot of the window. Again, I can't really tell what the subject is. If it is the architectural piece itself the base should be included. In the picture and you should try and get a wider shot of it if possible, whatever the structure is sitting on is cut off. If the reelections are the focus I'd say zoom in on them and fill the screen with them.
Pic 4: This shot has a boring feel to it (thats not an insult, I'll explain). What I mean is the water and the sky are at equal parts, each taking up half of the screen. This usually doesn't fair well for landscape shots, they often look better with the focus (either the ground or sky) being 2/3rds of the scene. This scene would probably be improved by cropping so that 2/3rds of the shot was water and 1/3 the sky. Its also a bit underexposed but thats going to be hard to compensate for without something like a ND filter.
Pic 5: This pic lacks a clear subject. I also can't really tell what I'm looking at :/
Pic 6: Again, this one lacks a clear subject. If you were going for abstract, I'd suggest steer clear of it. Its very rare to see a good abstract shot, most are boring, uninspired crap (the kind you were hinting about in your post that you see in museums
)
Pic 7: You did a good job with leading lines unto the scene, but the subject they lead to (the man) is blurred out and looks like maybe he wasn't supposed to be there. You had the right idea though in this pic it seems with lines that lead the viewers eye.
I hope the above made sense. I'm a bit sleep deprived and delirious at the moment