yes ive seen that one but the problem with this is (at least for me) that everything is too small :D
like when my base character is 2 tiles high and 1 tile wide (like the ones in your jrpg kit) then a door with 16x16 is of course too small. and as humans are generally taller than wide i find the 32x32 sets of yours to be a better fit. probably depends on the personal definition of base tile size though. just thought id let you know. i bought a bunch of the 32x32 though and am looking forward to make them ready for my game :)