Your Saab pic is on the grainy side, there are dirt marks on the tail (dust) and the forward fuselage is hot. All mentioded things can be fixed. I am sure that if you rework the original it has a very good chance of acceptance.
You do not need digital to get pics accepted here, just a be very critical during editing. Judging from your other pictures, you know how to do it!
[Edited 2004-05-17 15:12:53]
Look very closely between the lines of this message, and you will see the captain beating up the jumpseater