To my eye this 'quick-is' map upholds the same standard as your regular maps. I'd rather call this a change of style than quality. It's really amazing what you're able to do in so little time.

As for your question, I would agree with the others. I think you'd get a lot of followers over on Patreon and also RPGDriveThru is a good idea, though I have no idea to what degree you would or wouldn't have to create a setting.

Great work!