Three movements in C

This is my first composition I did in my life and on Flat.io. I started this because of school (goal program), but then as I took the Harmony 9 and 10 RCM courses, I got more and more interested. Movements 1 and 2 came when I was doing Harmony 9 and Movement 3 when doing Harmony 10. Yes, learning this doesn't mean anything if you can't create fluid, rhythmic pieces, but it's a start in chord-understanding. I worked on this until it became the thing you see today. I published this to get feedback on how to improve my composition skills. Originally, I had wanted to name it "Piano Concerto in C" or "Piano Sonata in C", but then I listened to some real piano concertos and sonatas and then decided my three movements hardly do any justice to the genre. So I am titling it Three Movements in C, and I do hope you give me your opinion of it.