you can sign up through facebook or do a regular sign up https://www.patreon.com/bePatron?u=305661&patAmt=15 and adjust how much you want to pay per month to support through that link. I think if you play around with it it'll be easier to understand.
Link
Mirera
Do I have to sign up to patreon or what? How do I do the thing? Because I admire you a lot, and I would love to support you. <3
Your art is an inspiration to my own. :)