Super cute style! Those are 100% commission quality imo
For pricing, just keep in mind how long it takes for u to do each piece and go from there. Don't undercharge yourself!
Fiver is also whack, so be careful. Esp with Minecraft, often you'll be dealing with kids who don't really get how limited u can be n such. Also def will be a lot of odd req so make sure u can state what can and cannot draw
Best of luck!