Thanks for the praise.
The big one is, all things considered, somewhat too big. The smaller one has some rather big design issues in some regions, and both of them need some toning down for some of the province guardians (the Earthmother in the Moonshaes is especially nasty).
I've been working on a new version with only 281 provinces (it really will not go any smaller without losing the thematic feel and even then I had to cut a couple of places I wanted to keep but could afford to remove), which should be more workable. When it's ready, that is, but I won't be making it public immediately. This one also won't feature all nations. Mictlan has been cut, and so will Ermor, in all probability. It just doesn't fit too well on the map.
The problem with different versions for different eras isn't in the picture file, it'll be fixing the map files to reflect each era, which is more work than appears at first glance. And I need a working Unit DB and Site DB to really make it good.
I've still got a dream of getting to do a full Toril (Faerun & Kara-Tur) map someday, but that's another story...
Edi