Ta, mate
if I've done it right, you are looking at AFS4 default stuff draped on the GeoffKiwi mesh. The airport is impressionist rather than realistic, but it looks good. Same goes for the cultivation (buildings, trees etc) but the buildings are much better aligned with the street pattern than they were in AFS2. I wish they would release the AFS4 scenery SDK, so we can make our own. As I understand it, Steam will prefer any third-party scenery which it finds, over the Aerofly default. I think that is good, but it can result in earlier third party scenery not being updated by Steam.
If you suspect that is happening, you can deactivate the folder containing the older work by renaming it with a double underscore in front e.g. /emfratchathams becomes /__emfratchathams.
The main.mcf file is like the MS cfg file, and it will be recreated if you delete or rename it. I make a copy of mine, renamed to main.mcf.last before I start fiddling. Within an mcf file, if there is a line you think you might not want, insert // at the start of the line, which will make it a remark instead of an instruction.
ATB
Mike