Your big baby is gorgeous :) Your position at trot is impeccable. The only thing I could possibly say, and I say this knowing full well that the photo is just one moment in time, is that your hands could be feeling a bit more giving and feeling forward, to allow more telescoping of the neck (he is a bit behind the vertical-not the worst sin in my book as long as it is only occasional, but something we don't want to encourage in babies). He is also a bit short in the photo (isn't tracking up), so I'd be encouraging a more powerful forward trot as his balance allows.
The jumping photo shows very short reins with a crest release. You are standing a bit in your stirrups. I'd like to see your body with more angulation - did you possibly get a bit left? Or was he very strong to the fence? The photo gives the impression of holding, though the pony is quite tidy over the spread with a nice bascule, which I think might improve with a longer release.
You are a lovely rider with 2 very nice mounts :)