Hm, I don't think I did level 7 the way it was intended. You can just jump from the flower at the spawn directly to the altar, and spend you one flower this stage to replace it. I didn't need to go to the right at all.
The puzzles are well designed, but I think there might be some solutions you missed, as I also beat level 8 with an extra flower unused.
You should also probably freeze the player movement during the day/night cycle cutscene.
At any rate, I enjoyed the puzzles, the day/night cycle animation was really cool, the character was cute, and all around this was a good time! Great work.