I adore this one, making full use of its colour scheme, with the surprising result of the ritual and all. I really liked this puzzle, and I think the length of the ritual, outside of being symbolic, was really nice, since I really got to feel like I was following some old path with the last few strikes.
Very glad you liked this little game!
Speaking about the end - tiny spoiler ahead - last strokes should form a specific symbol; I wanted also to highlight this in some way (by painting ground/some other effects), but decided against it, because in some cases player fail right before the end and it would look strange.