That's what I thought at first, too, but then the PCB crew's kanji would be 妖 instead of 幽.
And, y'know, Yuuka wouldn't have been there, because her first appearance was in a PC-98 game, and her first appearance on a Windows Touhou game was later, in Phantasmagoria of Flower View.
Under the "Gods" section, it would make much more sense if the silhouette is recognized as Kanako, taking into consideration the Onbashira rods and the circular rope are more recognizable. It's probably not Wriggle.
By the way, is that Tenshi's apron right there in the same section too?
Earth
They are all residents of the Palace of the Earth Spirits.Eternity
The first kanji in Eientei, the house in the Bamboo Forest where the rabbits, Eirin, and Kaguya live.
Also the first character in the game in which the Eientei crew appeared, Eiyashou (永夜抄)Scarlet
a.k.a. the Scarlet Devil Mansion, where all of them liveGhost
Yuuka is there because this kanji is the "yuu" in her name. Ran (and Yukari) is there because they're close friends with the ghostly crew, and because Perfect Cherry Blossom was where they made their first appearance.Fairy
kanji is the "sei" in "yousei".
Rumia's just there, probably because she's an idiot too.Gods
