She's a character from Kiemasu Tokemasu Nejiremasu ([link]).

I really like contortions, and even more "fantasy" contortions (when people are bent in impossible ways for the human body to achieve). Here she is bent in a Human knot (it's a classical pose for contortionists), so it's not just fantasy.

I'll try to have her do fantasy poses next time, hehehe ^^