SO for my Dungeon I had a few influences that i took from mainly the art style being World of Warcraft with the hard edges and hard edges and for the layout of the scene i went for a more isometric look. I looked at games like Bastion, Diablo and Torchlight. Another huge influence was the game Dungeons and Dragons which is what this was based of of. For the scene i looked at models made on sites like Dwarven Forge which allow you to build your own setting out of interchangeable pieces.
Here are some products from Dwarven Forge, you can see the way they are interchangeable and can work in different environments more than once.
A huge help to me in this project was this in depth tutorial from cube brush would definitely recommend checking it out.