Making Money With Unreal Engine

I just had a question, how can a unreal engine environment artist or architectural designer make money alone without working for someone?

Create assets packs for marketplace.
Or join some indie team (but that usually never makes any money, most projects die out before release). For indie teams look for serious folks that do not plan to make huge AAA game (ones that plan size of game around team they have). And yes indie team is again working for someone.

Or you can learn blueprints ad do some small simple games.