"C7 Serenade" (Piano improv with chord progression, quiet ambience)

So, I was playing around on the piano and came up with something cool, so I thought I would hit 'record' on my iPad and see what happened.
This video starts with a succession of pre-planned chord arps that I came up with before recording (labeled on screen), then moves to free improvisation (unplanned), and then finishes with a return to the opening arp.