HiYou obviously know the notes, which is most of the hard work. Now you need to start thinking about the dynamics. I don't know if it's just the digital piano or your playing but there isn't a lot of dynamic contrast. For example at the very end where it goes from piano to forte(con forza) you play it at the same volume throughout. You should also increase the tempo. This is followed by ff, which you play very softly.Also the left hand chords should always decrease in volume, so that the first note (with the dot above it) should be the loudest, then the two following should decrease in volume.I suggest you look at the sheet music and try to more thoroughly incorporate the dynamic markings. You can also listen to some of the great recordings on youtube, Rubinstein is my personal favorite.