What is that? A block of wood? My POV is blurred right meow, as all the blood to my eyes are busy elsewhere..

This is actually quite nice - a portable wooden horse !
Love Suiguns art!

Gotta love bondage like this. She can try and stand on her toes for a bit to relieve the pressure, but that kind of position is tough, especially bound like that, so soon it's back on the horse so her legs can rest...