Your clarinet suffers from the 'machine gun effect', where repeated notes are repeated samples as well, which results in it sounding fake. Main part which did that was at 0.51.
Overall, this is a pretty interesting piece. Very good use of range. I think my main gripe with it is the fact that the piano rarely, if ever, uses any chords. Even in twelve-tone/atonal pieces where there is a very strict process, chords are used. I think more chords should be used, especially ones which utilise the range of the piano as well as you did with your single notes.
The other thing is dynamic range. There is none.

You stick to one dynamic the whole way through. The clarinet only sounds louder at some points because it's higher up in pitch and it naturally gets louder. I suggest really thinking about dynamics more if you want to write like this, as dynamics were put through similar processes.
Too short, but pretty nice!
TubeyouYou are the hero My Little Remix deserves, not the one it needs.
So we’ll hunt you. Because you can take it. Because you’re not our hero.
You’re a silent guardian of music, a watchful protector of songs.
A doctor of dissonance.
-Phillypu