I think the only "problem" if it is that is the rhapsodic form with several different parts. But I don't think about it as a problem. It's just the form you wanted to use.
The same happens (to me) with the use of atonality or near atonality or whatever. Currently I don't care if I mix one thing with the other. Yes, it's good to know the harmonic systems and languages, but I don't think any contemporary composer stayed in a unique field. It's different if you want to stick to a classic style. Otherwise, anything is possible, the only thing that matters is the result, and if it is a way to express something, or share something.
I like this sketch a lot, perhaps for its eclectic character, and its musicality. Anyway, one needs to approach the listening of these pieces with "open ears". This is not very "radically" contemporary, but one of the worst things, in my opinion, is trying to listen to contemporary music with classical mentality. Different languages..
The part in secondal harmony (m. 19-22) is tough, surely because the chords are doubled, I like hiere the A at the bottom.
Greetings.