an interesting set, but mainly "close but no cigar" I'm afraid IMO
1) A well thought out shot, spoiled only by slightly innacurate framing - the central arch of the bridge really needs to be exactly on the centre line of the frame - as it is it's a tiny, tiny amount out (made more noticeable because of the central shot numbers, must admit!) Also - the sky needs work - traditionally I'd say burn it in a bit in the darkroom - there's probably enough in the neg to get SOME detail into the sky, as it is, it's just lacking a bit of oomph...
2) sloppy framing or cropping, either way, its on the wonk, and offset in frame - if you can't get it right in camera (and I admit I often can't myself without a tripod and half a hour of faffing) shoot looser and crop it to get it right - it's far more important too get the picture right than gettting hung up on showing a full frame.
3) i'd have preferred it having been shot from between the inverted Y ofthe girders - also the hand, and the ?telescope? are far too obtrusive for me. Sorry but no.
4) again, on the wonk. IMO it's pretty critical to get that sort of stuff right on architectural images. Well - that or the old maxim - 30 degrees out, it's a stylistic statement, 1 degree out, it's just a mistake.
5) nice enough snapshot of the "galloper" but too tightly cropped, cutting the legs off - also the awful cheap plastic bikepedal just screams at me.
6) again, just a smidge off-level, a slighly looser framing and fix it in printing/cropping would sort it though.
7) + 8) - i don't DO people shots, so i'll leave crit on those to others.
9) + 10) Interesting staircase, and worth a couple of experimental frames, but again they're just not quite there - first one's listing like a amphibious truck in Liverpool Dock, the second is just not going anywhere.
11) + 12) again, I'm not "feeling it" with the chairs - plus once again they're on the wonk.