Pictures: Black cat. Interferential watercolor

I drew this cat from nature. With his property of a cat named Tatsu. It always takes some geometric shapes) All so correct! Then how the triangle will sit, then how the square. This cat considers herself a queen and her look says a lot!
The work is written in interferential watercolor on black watercolor paper. When the lighting changes, it changes color. This can be seen in photos and videos. But neither gives a complete picture of this effect. The painting is not framed for easy portability.