Guldies - This guy is amazing check out his stopmotion animations and great sculptinganimations
https://www.youtube.com/watch?v=uUtEtUD-sSg

Verdi - Traviata
https://www.youtube.com/watch?v=NDhHxIz83Ic
great stopmotion

https://www.instagram.com/michael_zajkov/

Some amazing  head sculpting's created by Michaek Zajkov contains videos of making.