I've helped a few of my friends and fellow artists and stylists curate a contract that works for them and have been told my contract is pretty air tight. I've studied hundreds of other contracts and spent hours perfecting the terminology included in my service contracts. If you'd like to see it and use it for your business you can purchase it here.
This contract has not been reviewed by a lawyer and I will not be held liable for any issues that occur. You are responsible for updated the contract and customizing your policies to suit your needs and fit your business/ services.