Sophia I recorded a quick sequence what I meant.
Certainly, with the digital piano in this acoustic, the piece sounds very dry.
Before adding any pedal, you could see if your digital piano has a setting that gives more resonance. Most have some choices that simulate different acoustics: small hall, large hall, church... You may find something that makes the general sound more pleasing.
It's worth listening to the original version for string quartet. You can hear three levels:
- The melody played by the first violin
- The bass line played by the cello, melodic in it's own right
- The accompanying figures played by the second violin and viola, very light and airy
On your digital piano, is it possible to play the bass notes the first of each group of four in the left hand) a little bit louder than the following ones? And can those following notes sound light and airy, like the pizzicato strings? If that works, try adding just a touch of pedal to each bass note.