Steve,
Photo 1 suffers from poor cropping technique as you have blown out the highlights at the left side window pane and there is lost detail on the table immediately beneath that window. So that should have been fixed either by cropping, by recomposition or by pre/post processing exposure adjustment. It's a cardinal sin to blow out highlights at a peripheral section of the composition because it tends to draw the eye away from the main composition, kind of like having a bleach stain on your best shirt. You could have also done a better job of arranging those poles to accentuate height, maybe placing them together or angling them towards/away from each other at the top to accentuate the "A" frame shapes of the timbers and roof line.
A similar situation occurs in Photo 2, this time on the right hand side. You could play with losing the right 1/3 of the frame or at least do something interesting with the bricks on that table. You have also lost detail in the left side wall so an exposure compensation should have been made here. Another interesting thing you can do if you have remote lighting would be to illuminate the insides of those ovens/fireplaces. even an incandescent light or well plased torch would give a nice effect and greater interest (something to consider for future shots I guess).
Photo 3 does a better job compositionally as the washed out details in the window panes is actually interesting as it provides a white backdrop to the vertical/horizontal frame pattern, but it could do with a 1/2 stop or so adjustment. You'd have to play with it to avoid losing too much detail in the shadows below. Again, I would have moved the light colored objects to the darker areas and the dark bricks to the lighter areas to create more contrast and interest. This would do well in monochrome.
Photo 4 is OK except you broke cardinal rule number 2 by having out of focus data in the foreground. This also can be very distracting but at least it has pleasant bokeh. This might have been mitigated by stopping down to get better depth of field.
You can see how much more pleasing Photo 5 is compared to Photo 1 when that blown highlight is out of the frame. The exposure is more reasonable although it could be dialed down some more. The person's back and hair is starting to wash out. I'd probably crop out the left third in this shot to shift the focus of the composition to the person framed by the door and ceiling.
I like Photo 6 except, again, you've blown highlights against the wall. Another excellent candidate for monochrome. Is that a particle beam generator mounted on the left wall? if you monochrome the shot it doesn't stand out so much - or recompose. Not sure what equipment you're using so it's unclear what kind of control you have over exposure, but it's a definite weakness in these shots. 8)
Err..not sure what to make of that final shot mate. Could be sheer genius in the impressionist mold....or not.
Cheers,