Its also a idea but i would like to have more ppl interested in supporting the idea before taking that step, if a low number of ppl are showing interest in supporting then there is too little motivation for me as a artist to create the project =\
yes i understand many people dont like patreon , but sadly it is a great tool for support personal projects, its difficult to explain the story i have in mind XD its really a mixture of drakengard/nier/guilty gear XD but since i do work only with the art i create its pretty hard for me to create a project with no financial plan involved =/ i like to create the adopts adn work with that full time but it would be nice to start something original , sadly if there is no support for it then i guess its just not the time.
A suggestion would be to maybe carry on with your adopts, but add options that allow you to make money and possibly give the buyer a bit more as well, or just the option to give tips if maybe 1 or 2 small things are altered, something like that. Also, I've seen many people start making ko-fi's, and I see no issues with that, can't paywall through that site.
Elaborating on my first thought, lets say you have an adopt up in your $20 tier (colored sketch or w/e), someone buys it and has an idea, let's say, they want the character to have a crown or tiara, done in your style and adjusted. Maybe do that for $5. Offer the option to get a sketch of the same character for, I dunno, $10? Let them have a little input or do a wing it.