That looks gorgeous! And this is now completely on the SNES? It shows what a little bit of extra work and shine can do for an old game. I love the original FFIV, but I can't deny that some of its tile choices are muddy or plain. That jumps out to me a lot more than the original's graphics did.
I guess we are lucky that the game was remade for the Wonderswan first. As a result it doesn't really go beyond what is technically possible on the SNES. The real limiting factor is the game engine itself. The only way to get the graphics as close as this is to give Baron its own dedicated tile map, as I said.
OK, here's my little bit of nitpicky: the top right corner of Cid's house seems to have missed some shading detail. It's Baron's only instance of "top right building corner in front of wall," so easy to overlook. But it definitely doesn't match the other buildings' top right corners, or the other corners of Cid's house for that matter.
Other than that, I second everything Grimoire said.
The only "strange" place I see is where buildings have a top-right corner next to the grass tiles. It seems like the pattern doesn't quite match the adjacent tiles.
This is especially pronounced in the case of the water and grass tiles being adjacent to one of the building top-right corners. I can understand not wanting to make a special tile to handle the grass-water-corner-- especially if the pallete is restrictive, but maybe just making the grass blend better would be good enough.
You guys have keen eyes! Those two items are on my list of concerns as well. Let me point out that these are not the result of poor porting or simplification. It's what things look like in the remake.
Top right corner of Cid's house: At first I thought this was the result of palette limitations, but turns out that's not the case at all. No idea why it's different from all the others. I can change it to look like the others.
Top right corner next to the grass tiles: It's actually both sides. If you look closely you'll notice that they're mirrored. I agree that the grass part kinda sticks out, especially the two horizontal lines at the top. Why they didn't just take part of the grass tile as they did for the walls, I don't know. There are only three shades of green available, but it can be done. I gave it a try and copied the standard grass tile corner over, but I had to keep the top three pixels dark. Otherwise the water transition looks even less smooth, as DackR noted.
Better? Thanks for both the suggestions and encouragements so far!