As the artist, I have the right to accept or reject any commission.
You can send me any type of references you need to express the way you want your commission.
If the client want to be anonymous or keep the work as private it has the right to ask for it.
I can make use of the work to make self-promotion, displaying it on my social media and as samples.
Commissioner can share the work on their social media or use it to promote themselves (Giving the proper credit to the artist)