Title: (Reitaisai 10) [SUZUNA JCT (Matsuyuki Kabun)] Souhana Yuugi ~Cocktails of Iku (Touhou Project)
JPN Title: (例大祭10) [SUZUNA JCT (松足嘉分)] 双華遊戯 ~Cocktails of Iku (東方project)
Commissioned by qazmlpok of http://www.touhou-project.com/
Artist name romanization might be totally off.
Please support the artist if you can.
You can view it here