TL;DR: If you want to potentially be responsible for a ton of refunds and legal issues for $100 then go for it.
Hi, I can transform images to paintings and drawing using photoshop if this helps. I also make coloring books. Check this cover I made for my lion coloring book and let me know if this is the style of digital paintings you want. Thanks. Coloring book of lion: https://www.amazon.com/dp/B08SCX7WF7
This is the app.I would need to spend a special invite link to test the new unreleased version.
https://play.google.com/store/apps/details?id=com.caribu.Caribu&hl=en