THIS IS HOW I HAVE EDITED THEM STEP BY STEP:
NOTE: Using photoshop CS41 - I level the photo.
2 - Manually adjust levels.
3 - Adjust shadows from 0-5%
4 - Adjust hhighlights from about 0-10%
5- boost saturation from 0-5%.
6 - Boost brightness from 0-4%.
7 - Adjust contrast to liking.
8 - resize image to 1024 pixels wide.
9 - use unsharp mask for sharpening.
10 - Fine tune to my liking.
11 - Save as jpg. As max quality usually between 300-700Kb file size.
I hope that's what your were asking for Ian, if not let me know

Yeah, the QF 767... it's usable but the aircraft shadows pretty much ruin it.
I used to like that orange (sunset) feel to it, but I Guess it is more natural to have them white as seen by the eye. So I stopped changing those colours around and left it white.