It sounds nice enough, insofar as one can tell from a midi performance.
My concern is that if you have called it an etude, and given it's resemblance to those of Chopin, it should have a component to it that demonstrates and develops some aspect(s) of technique. If you yourself cannot play it, how can I be sure that it is a good etude (rather than just a nice piece of music) and is a useful aid to study? How do I know that it actually "teaches" something well if I cannot know that you know the subject you are teaching?