I did this keyframes to practice more my workflow starting with a rough 3D base and finally doing the overpainting. I wanted also to explain a short horror story and try to illustrate the mood of mystery and horror with my images.
Mainly I wanted to focus more in the 3D part to start learning how to do riggings, etc. Because when doing keyframes is important to be able to change the positions of the differents characters easily. The sketches were just for me, that's why I didn't add any detail.