I'd love to see more stuff from you.
Can't promise to support a Patreon (but maybe I will
If you do, though, use this!patreon.com/invite/pbpg
it's an invite.
I got a Patreon myself, together with talented (NYT bestselling) author Aaron Dembski-Bowden.
In terms of what you should do, I'd say there are some standards that I see artists do-
You named them all. Though I think Prints is a bit shifty. People want prints, but consider the costs. If it costs you more than what you get, it hardly is helpful for anyone (because you'll go broke, and have to stop with the patreon, so nobody will get prints anymore
I think the really big key is to gather many patrons, and have low tiers.
So, yeah. If you are already giving away extra's at 1$, that is a good incentive.
I really hope it turns good for you
(and shameless plug obviously)
Check out our Patreon www.patreon.com/RoadtoJove