You missed out on some cool grazing.
The fairies at ~0:23 give you lots of graze if you stream a few pixels under them (stream right with the first one, kill the first one right before the second fairy starts firing, stream left with the second fairy).
Stand right under Cirno during her nonspell to get a lot of graze when she shoots the icicles (you need to get out of there right when they spawn, which isn't TRIVIAL but shouldn't be hard). If you're good you can graze every time she fires them, not just the easy first one (no jellybeans).
The first stage boss's first spell can be grazed by circling around her. The first, third, fifth, etc.. waves are easy. I think the even waves are impossible unless you're Marisa, and even then it's iffy?
I don't even know how much graze helps score in this game but nothing of what I just said would have hurt your run.