The first thing I notice is that you need to get your sensor cleaned there are a few very obvious blobs coming out on the images. It would be worth cloning these out.
As for the shots, I really like number 1, nice composition and nice colurs.
Not sure sure about number 2, all that concrete, just doesn’t do anything for me. Although I like the idea with the grafetti and all.
The third one I think could have done with a few steps to the left and making more of the chimneys as IMO they are crammed into the side of the shot, it would have nice to use them more than the path for the foreground interest.
As for the HDRs, I like them as you have not overdone them.
I like HDR pictures that are not obviously HDR ones, thus nos 1 and 3 appeal to me. No 3 gets my overall vote but if possible I would include more sky to the left of the chimneys, they are kind of hanging off the edge a bit.
Overall they are good HDR pictures and good landscapes, I look forward to seeing more of them.