Are you using any application for editing such as LR or Capture One? I really suggest straightening out the photos, because currently most of them are not straight at all. You can try to level against a building, it will usually turn out good enough, avoid other straight lines on aircraft such as the fuselage as the aircraft might not be entirely level. ;)
In the photo of the VX A320 it looks like focus is more set on the tower, so try to also focus on the aircraft. I suggest using manual selection of the AF points as the camera will often make the wrong assumption of where to focus. Of course this depends on your camera and mainly manufacturer so try and retry until you find out what fits you the best.
Very nice pictures! Somethings that could be worked on are the cropping of the image, and the amount of contrast (increase it). Other than that, perfect!
Awesome. Someday I hope to be able to just look at these planes and identify which type they are. I am never able to tell the differences between these aircrafts.
Amazing pictures!
