This is a really well done piece. There are two complaints I have overall. The first is that her perfectionist personality was hard to spot since the only instance is her trimming the bush, but the first two time I watched I thought the focus was the bad memory, not her as seen from above so that part of her was missed. The second is a personal preference that I would have liked to so her face instead of it being shadowed so we could see how she felt after it burst, but that could have been an artistic choice to leave it in mystery.
Overall though it was a great animation. It was very fluid and it was apparent to me the creator took effort in the finer details, such as facial expressions and body posture to give her a personalty. The piano fit perfectly to what was being shown and created an atmosphere by itself. The metaphors used are strong and were easy enough to spot.