I agree with @gibby about the chip on the shoulder. It’s very apparent.
I studied 'cello with Aldo Parisot at Yale while I was in high school, a long time ago, and also toured with him in Brazil. I have some idea of the caliber of 'cello performance at Yale, and also what level of pieces would be likely to impress. Again, I think it’s ok to submit a supplement, and the OP deserves credit for her dedication and rapid progress, but I think she’s also a bit arrogant, and may overestimate the impact her supplement is likely to have.