Kantoku does yuri

Spotted this lovely illustration by artist Kantoku from the circle “Afterschool of The 5th Year” (5年目の放課後), known for many terrific art creations.

It struck me not only because it is as usual a brilliant display of Kantoku’s wonderful art style but because it has a very cute, yet still innocent yuri atmosphere to it.

Apparently the characters might be from the “Shinkyoku Soukai Polyphonica” (神曲奏界ポリフォニカ) franchise but alas am not very familiar with it so not sure who they are.
Haven’t seen the anime adaptations either. Did any of you seen them, are they any good?

Well, it’s not the first time Kantoku draws girls getting frisky. Can only hope to see more of such wonderful creations from this great artist soon.