Not sure I understand what you mean XD I'm sorry
edit: what you mean is how I tiled everything for the screenshots ?
from what I remember : the ground tiles are made like normal tiles , the same way you will tile them in the engine , and then the trees , characters , etc . are just layered on top just as images over the tiles.
but the layout is already premade in the image files . that's why I'm not sure what you mean exactly !
let me know if that helps or not :)