First, I'll say what was excellent in my opinion:
-intonation spot on
-great sound production, good clear sound even in the fast passages
Now to be critical:
- weird tempo/rhythm issues here and there, like in moz 40 at 1:04 ish. Seemed like you sped up as you got louder in the Beet scherzo
- not enough phrasing. Shapes of the lines tended to be flat, not much dynamical contrast. This was most evident in the Mozart, improved in the Tchiak. I think if you want to show somebody the shape of a line, you need to be very deliberate and purposeful or they might not notice!
- a few strange things with ends of phrases, like at 1:42, kicking the second to last note, or sort of choking off the beginning of the mozart at :23. Sometimes it seemed like you had finished the line in your head before you actually finished playing
Anyway, that's my 2 cents. Your playing is excellent. I'm not really qualified to criticize because I am not a professional and have more issues than you do for sure, but those are my thoughts for what they're worth.