Danny:
No.1 looks like it might need some perspective control used on it, and at the least crop from top below the horizontal moulding well above the door.
No.2 again, I would straighten the door vertically. No exif info on lens is it a manual wide angle?
No. 3, I would personally crop from left to lose the window and perhaps up from bottom.
Unfortunately as I type this the remainder have not come up yet though the last one seems a little tilted. Can you turn on a grid in your viewfinder which might help in getting things straight in camera?
Douglas
Many thanks for the advice.
The lens is a Nikkor 50mm f/1.8d AI-S Prime lens.
I shall have a play around and crop the mentioned point in the first picture, I can see where the distraction comes in from that slightly. I shall do the same in the third picture as you mentioned and see the outcome.
As for the grid, I don't think this is possible on a D3100, however I used a grid to align these pictures at certain point, for example I used the right post of the building in the first picture to determine a vertical plane.
