Is a specialist mural artist eligible for a work permit in China

II work as a specialist wall mural artist and designer. I recently visited Guilin in China on a tourist visa, I was fortunate to meet with People who own 3 private schools, they have sent me a invitation to return to work with them not as a teacher, but as a wall mural artist and artistic designer for the many projects they are undertaking with the beautification of school buildings and surrounds, I would also be an adviser of artistic designs for promotional purposes of the 3 schools.
Would i be eligible for a working Z?
Thank you.