I remember this when you were still working on it 2 years ago, congratulations, you've a lot to be proud of here! For sake of later improvement, I didn't care much for the stagnant eyes, and the girls huge eyes were stuck in perpetual shock, really made looking at her difficult! I felt that the flute notes sounded way too synthetic, especially when the girl played for the last time.
Aside from that, the sub-text, overall look and pacing of this animation is extraordinary for one person to complete. You may have only gotten Daily 3rd place with this (rotten luck), but it's sure to place very high in the monthly voting, This is definitely a classic, and I'm glad it's here at NG