I love that nice, crunchy arpeggio opening, it's amazing! It feels very 'particle-y', and I wonder if you could incorporate it more into the rest of your composition. For example, you could use a variation of it as accompaniment in the left hand while the right hand is playing those echoed chords. I think it would be a great supporting element to those heavy chords you have playing throughout, and help diversify the texture of your music.