Change to monthly based profile (Patreon)

Hi everyone! I have a lot of questions about how patreon charge patrons. In my case I charge patrons monthly but a lot of people think  that I charge money for every picture. So I decide to make my patreon monthly based for avoiding this type of misunderstanding!
What do you think about it?

P.S. I will sending rewards as usual on 7th of every month.