Quite a clever piece and not one I'm desperate to try playing. I hate rapid wrist staccato as in bar 47, Var II !
Chopin's "Still is the night" (or whatever) study - to be official IIRC it's Op10 No 3 - was bad enough. And those triplets and duplets in the same hand don't look too beckoning, Var III bars 64/66. Var IV bar 70 and a few others would need both hands not to know what the other was doing. Nice piano technique though -it sort of fleets through.
Again in Var V, the triplets and duplets and they'd need long fingers at the rate you're expecting them to be played. It may not seem fast but the second beat of bar 84 may be a stretch problem.
Altogether this would take Lisztian technique and finger independence but the rendering comes over very well. I thought the cadences at each variation were sometimes abrupt but guessed this is the effect you were after to separate the variations. They're far from samey but at times the bravura delivery may make a listener wonder if a new variation or just a development of the existing one was under way.
A change of key here and there felt necessary. Just my reaction - and perhaps a few slower paced ones which would have offset the faster ones a little better. But what you've ended up with is a grand development on the opening theme.
Great!
Cheers, Quinn