The top picture is one I took of a road next to a tall building then edited. The pallet racking picture I found via a google image search and was from a news artical so I guess really there are copyright issues. I darkened it prior to printing on a standard inkjet with normal paper. Once printed I used the same grey paint for the floor as I had used in front of the buikding and 'touched up' the printed floor . If anything the pictures perspective point is too high, but the downside to a 2d image is making a compromise with viewing angles. If I take a picture from track level it looks wrong, but its about right for normal eye level viewing. Once my stacer truck arrives it should block the view at lower levels and allow it from higher ones. If all else fails I will model the door closed

Think you have hit the nail on the head with your observation about perspectives John. The trick is find ing an image that conveys the perspective from what in reality would be quite an elevated position. You'd need to travel around with some very tall stepladders as well as your camera... That all said, in the right circumstances it could take the sting out of openings in Low relief structures. But I am guessing that unless you are exceptionally lucky, getting the right image for the right spot is going to take a lot of work...... but would be well worth it.

This issue of viewing angle has relervance not just to my humble warehouse interior but also to the classic 2d backscene in general. Even modern photo backscenes are best viewed from a low angle, but many exibition layouts are not at eye level? Interesting thoughts, at the end of the day some element of any model is a compromise I guess?