I like it. Great composition and colors. The color adds depth to the shot. If you were zoomed out a but to show the details of the clouds that would be great. -.5 because of how close the shot is at. Feel crowded at this angle and closeness.
Having come up with the idea for said century comp in the first place I can speak with some authority here (me likey... ) and I can say that that shot is really rather good. The cirrus especially is very cool...also has a nice atmosphere....
8.5 from me... only reason is that the planes lack some detail and look a bit basic, plus you have those jaggedy spars (which I know myself are pretty much unaviodable)... but that's minor.