Sweet, thanks that'd be awesome. And yes with the grass cliff tops just like the old RPG makers that had those grass cliffs. Just have to make like a sort of brown edge border or something for that.
Also, I notice how on Tile A, the final area with the dirt for putting crops on, that there is no need for there to be 2 upper parts for it right next to each other. I just mention it just in case you think you should put something in those 2 spaces if you decide to put a simple Tile A improvement.
But yes a non-shadow version of the cliffs would be nice. No way I could really edit them without it looking bleh. And well as you said there with the shadow layer, it'd be easier for you to edit.
And the grass top cliff, you'd just need to make that part of it because the brown cliff that is already there would be used for the walls. Also could make a snow top cliff as well which would also use those brown cliff walls only have the snow for the top, just like the grass one. Because don't think using that ice cliff meant more for dungeons would look right in towns or outside locations. Also possibly a desert cliff top and maybe that dirt like path.
Though now that I think about it... all you'd really need to do is make that little brown cliff edges while leaving the middle the rest around transparent that way just using the normal grass and other floors, then putting on that cliff edge over it. Hope that makes any sense, I have trouble explaining things sometime. I am sure you already had that in mind though.
As for rock ideas, make ones that had took up about 4 squares like old RPG Makers. Just an idea though throwing it out there. I much rather prefer that cliff border for all the other kinds of terrian that would use the brown cliff walls.
Keep up the good work though, these are real nice.