Art fetish is a branch of fetish modelling.
It will typically take an area of fetish modelling, such as rope, latex or similar and but taken in the art nude style of photography. Art fetish will quite often involve modelling with another female or male model, or indeed even the photographer, and may require some degree of physical interaction. There are also areas of fetish, and art fetish, that include vaginal and anal insertions.
The art fetish photos below should give you a good idea as to what is involved in art fetish modelling, but before considering any branch of fetish modelling, it's a good idea to do some research to understand what areas of fetish modelling interest you and you're open to - versus those that do not interest you.