If it hasn't been mentioned before, "any" (that's the username) has already contributed maps here for this game, and I see some things interesting:
Differences:
-there are a number of name differences between any's maps and yours:
Altair/Altea, Arena/Coliseum, Bafsk/Bofsk, Black Mask Cave/Tropical Island, Castle Palamecia/Castle Paramecia, Castle Pandemonium/Pandemonium, Cave Of Mysidia/Mysidian Cave, Cyclone/Whirlwind, Dreadnaught/The Dreadnought, Fynn/Phin, Fynn Castle/Phin Castle, Gatea/Gatrea, Kashuan Keep/Kashuon Keep, Palm/Paloom, Semite Falls/Semitt Falls, Snow Cave/Snow Cavern
-you've also mapped Machanon, Miscellaneous, Salamand, Unknown Cave and Unknown Palace, and all the dead-end rooms in every map
-any's got shop information
Similarities:
-you both happen to like the Comic font (>_>)
And again I run into the issue of whose maps to feature. While I do like that you've mapped more areas, and included all the little rooms too, I do like the shop information that any has...