Congratulations on 100!! This all looks amazing!!
Do you think you could separate the signs that go higher than the bottom floor’s limit on a different transparent layer? For tile-based mapping like RPG Maker they will be hard to use otherwise (you can check with a 16x16 pixel grid on your sprites! Each tile has got to be a multiple of that size and aligned the same or else you have to trick the engine in some kinda way… it also would have to be on the B and on sheets for layering)