This piece, at times, sounds very tonal. It is not that tonality has disappeared in contemporary music, but in my opinion there is a tendency to write tonally, which shows that there is no mastery of contemporary languages, which are not easy at all.
Contemporary systems are, precisely, organized systems. It is not enough to write freely, but one has to frame oneself in a language.
The double notes to fifths on the cello I think are not a good thing. On the one hand, they should not be easy, on the other hand, it is in a very low register, although tolerable if they are fifths.