Please forgive my retreading of recently covered categories; fresh finds are most fun to share fresh.
There are a lot of "Touhou-style" remixes of themes from other games, but I find a lot of them don't quite accomplish sufficiently relatable levels of zunish. This arrangement manages it multiple times in a single remix, and has the added bonus of impressive illustrations.
Miki Hiroyuki put her hand to the recent compositions of Touhou 17.5, and delivered something quite impressive. I'm glad she's doing more remixes of late.
And finally, to somewhat justify this feature with something more akin to the threads standard offerings, a Shinra-Bansho arrangement I found a while back. No animation this time, but it may be up there with my favorites from them. As expected, high production quality and clever twists upon the source motifs.