Hi Mahlon,
I was quite impressed with the Rachmaninoff performance :clap: :clap:. To be this young and master a piece (and memorized, no less) such as this is very remarkable. Polishing and finishing will always be an ongoing thing - I've been playing classical organ for over 47 years and still work on phrasing technique.
Student piano recitals are probably the most nerve wracking time for young musicians ... I remember that routine all too well.
Your compositions are quite fresh and very enjoyable to listen too. Your counterpoint style is certainly on track. You are certainly headed in the right direction with your music. Please keep this community apprised of your further developments.