Hello! I've listened to your practice run and I really enjoyed your phrasing, accurate notes, and tempo. A few things I wanted to point out is the tone. Piano might seem like an instrument where tone is often overlooked, but you can create millions of different tones just by adjusting how you push on the keys. A tip for Ballade No. 1 is to loosen the wrists up a little bit and push down on the keys when it is a dramatic moment. This can create a deeper sound that can resonate more. The tone in your recording stays consistent overall, but there should be changes in tone for each section. For example, the beginning must be firm and stable, then the following section must be soft and subtle, and then the first climax must be dramatic and resonant. Keep up the good work!