sakuragi_rian
Artist.
Japanese name: 桜木 李杏 (Sakuragi Rian)
The other names: 朝倉 銀 (Asakura Gin) or "Mashi" (reading is まっしー, Masshii)
Circle & Site name: Cynthia (キュンティア)
The artist uses the spelling Sakuragi Rean because the name came from a personification of the DeLorean DMC-12, pronounced "Derorian" in Japanese (pixiv #33322719).
Renowned as the author of this detailed research note about Satsuki Rin: [Evernote Link].