On making land - a brief introduction - Midjourney focused
We think if we create a world we imagine it all from our own minds but we really construct it from what we know with the goal of what we want. Just as the AI uses lessons learned from countless pictures so too does the human mind construct its reality and fantasy from what it has learned and experienced. Therefore even the wildest of fantasy has some construct in reality.
If you want this to create a new world - the designer of the TTRPG be it a Dungeon Master making a new campaign or a designer making a product to sell - then you must describe it. Not detail to detail but the feel first then the breakdowns. This series of tutorials is to help you and is just beginning!