the walking doesn't stop quickly enough, the sex scene doesn't care in what position it was ended and it would be great if spells could be casted up and down (controlled by WASD). The spells also halt all movement for a bit too long, making moving feel less fluid overall. also the cum effect is just a white square that doesnt cover the entire window.
The concept does feel otherwise solid though. I would also have liked to try out moving around a larger "level" with some obstacles and preset enemies.