Hi-NRG Trance Nice. I could suggest that here you could've dropped the main lead arm chords to have some variation. It sounds very repetitive here, and the arp continues throughout the piece. One thing that helps is to picture yourself making lyrics for a song to help know when to add verses/back off on the hype/energy and/or differentiate the riff from the chorus. Around 2:40 I see theres some shift in melodic flow, though its all understanding arrangement phychology. :) Keep it up though. I'll be keeping an eye on your work.