Pro photog here- these are getting solid. To take them from sharp, well exposed, decently framed but ultimately unremarkable images, you need to be hunting better light, looking for better backgrounds, finding unique foregrounds, playing with different focal lengths, and exploring unique framing and perspectives, as well as collecting uncommon moments. There’s flashes of this in these- good light in 1, foreground element and strong background in 2, a pan (albeit too short a SS) in 4, catching two planes in 6, and then 7 to 12 fall off into less successful “just a plane” pics. You’ve demonstrated technical understanding of image making, now you need to start working harder at unique imagemaking and better seeing. Look for backgrounds FIRST then get planes into them. Look for foregrounds FIRST then get planes into them. Leave more negative space, leave less, shoot at the start and end of the day, look for unique weather like sun shooting out under dark cloud layers. Challenge yourself to stay under 70mm, pre-visualize a unique frame and work to make it happen. The good thing about shooting jets is you often (give or take) know where they’re going to appear. Lotta your work upcoming is with your feet. Happy hunting!