I'm completly fresh when it comes to photography(just started,so i don't know much yet).

I was hoping that someone could tell me what kind of fabric materials Helmi Flick is using in her beautiful pictures.
and what kind of fabric material that's most suitable for pet portraits(especially cats)

I've noticed that there are many experienced users at this forum,and even though a question like this might not fit in here,I really hope that someone will answer.