Seeing all your tiles, you created enough things to start a world like a city, a forest, caves, but you can expand it to imaginary like orcs ( you did ) elves, dwarfs, dragons ( you did ) , vampires ( you did ), fairys, and with all you can do a tile also, like a dwarf city, a ruined city to undead creatures, high structures to elves, tiny structures to fairys.. and the universe will be growing much and much more. You also could create a farm tiles.. In my game I`ll desire create a map where will have a farm, I`l need to have a windmil, wheat camps, farmers.. just ideas..