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You have a good sense of melody. I prefer New Hope because of the melodic structure and the variety in comparison to Night Dance. When you're improvising you might try incorporating variety into your harmonies. For example, in Night Dance you play the same three-note arpeggio in the left hand for at least half of the song. Try extending the arpeggios (to another octave or maybe end the arpeggio on an unexpected note. For instance, if you're playing C to G to C try ending on D instead of C. Or trying going from that to the relative minor [A, D, A], etc.). I've learned a lot with this kind of experimentation. Hope this helps, and thanks for sharing.
I had a listen to New Hope and Nigt Dance, which I enjoyed. I think it would have sounded so much better on a real piano, as this sort of music needs resonance and the right pedal. I can tell that you listen to pop music styles too - in the piano ballad tradition, as your chords are influenced by those progressions.
As you develop you might like to do some more runs and melodies with the left hand, as this is doing the support right now in providing arpeggios - but some bass lines might be a next aim.