In order to clear any fears and save you some stressful tears, Here's some info on my Patreon that may be useful. If you have any other questions about it, feel free to pm me.
What you get: There are 4 tiers. The 1st two are $1 tiers which provide finished works along with their gif/jpg files. One is SFW (Safe For Work), while the other is NSFW/18+. The $2 tiers have the benefits of their $1 counterpart along with BTS materials.
Payments: The payments are currently not upfront. Feel free to come in and explore the page, and stay if you want more of what it can provide. The payment would be on the 1st of each.