Pretty good shots! They could definitely stand some post-processing. They look maybe a bit over-exposed and they could use a raise in the black point as well as more contrast. The colors are a bit washed and don't really "pop". On the propellor-drive planes a slightly slower shutter would give a bit more prop blur as well.
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A former sports shooter
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Welldone, you are amazing.
Airshows can provide some really challenging lighting.