To show you some of my work that I did in the RPG Maker VX Ace editor without any custom tileset or postwork, here are three floors of a simple dungeon. The first picture shows the entrance, this is the middle floor. The second picture shows the top floor with an additional exit to a mountain summit. The third picture shows the slime cave, that can be accessed through the ground level. Don’t forget to view this in full size.
Feel free to rebuild this for your own game!
Candacis' Resources and Map-Design 