Hmm...you should try to put more stuff on those maps...and, you might want to make the signs bigger so you don't see the grass backdrop, like on the large rock in the 4th screenshot. Also, it seems there's going to be a lot of contact with the legendaries in the game...will they be catchable before or after the Elite 4, or will they be catchable within their respective events (In place of the Kyogre/Groudon events)?
Also, you need to change may and brendan's sprites in unLZ-gba. (May's front sprite is 1294, and her back pic is 1363, and Brendan's front sprite is 1293, and his back pic is 1362.)