So - I strongly recommend a MIDI controller if you don't have one - it can be a more natural way to write music.
The vibe sounds right. The cello is well written.
I think it suffers from the fact that it is scored out in MuseScore4 - which really is more of a scoring/prototyping software. At least, that's how I use it. I perform with my keyboard. Though, I also mix in live instruments - but not everyone has that.
I think your second section sounds nice too. I'd really love to hear it in a more natural mix.
Great work!