big brother I have this preemptive suggestion for you: for every tile you make, make a variation of it. For EVERY ONE. Like, if you plan to make a self-tilable top front rock tile, make another. It should tile both to itself, and to the other variation. Trust me, if you do this, it will save you a LOT of trouble with removing 'too oldschool for me' tilegrids and also create imaginative connections elsewhere. After you make a better part of a tileset, the rest just comes together almost by itself this way and you'll think 'oh I am so clever!'.