What an energetic little "musical moment!" Here are some thoughts.
1. There is a sense of "perpetuum mobile" to this piece that bothers me just a little bit, and that is, that I just feel like there is not a moment for me to really get a break to reflect on each phrase. May a short (eight note) rest or note would be enough to do this. I'm not saying what you have in bad by any means, and my thought is very subjective, but I will say that there is just no place at all in the piece to really reflect at all, it just goes and goes.
2. At measure 8, I think the scalar motion going upward really takes away the cadential moment at measure 7. I think it would serve you well to just have a definitive cadence there and then start with stuff at measure 9.
3. That section at 9 forward is really quite beautiful and well thought out. I very much like how the momentum is continuous there. Great job.
4. The development is fantastic, good job using the material you have.
6. Measure 48 strikes me as the same as what I said on point 2. I actually think 49 and 50 is a great ending, but is there some other way you can arrive to that then the arpeggio going upward to it? I don't know, just wondering.