The grey glove with the frills is clearly Togawa Sakiko's and the red nails are almost certainly supposed to be Yuutenji Nyamu's. I'm tagging it as 5girls yuri on the assumption that the hands are the other 4 members of Ave Mujica, which would thematically make a lot of sense, looking at the image.

The one thing I'm confused by is why Yahata Umiri's distinctive half gloves are on someone else's hands...