Edit: Oh, you mean't hippie movement. Nevermind then...
Whatever happened to that artist? That last Silent Reimu thing was like four years ago, and the only thing newer than that on their account is from a year ago.
I only just now realized that in this comic and the previous one Flan's flower crown consistently has one flower sticking up above the circle of the crown, on the left-hand side. I am suddenly very impressed with the art!