>>33455447I know it's not your fault, but without fancy distracting 3D graphics, this is quite a boring route.
If you're making an X/Y devamp (which would be great, since emulating 3DS games is anywhere from impractical to impossible) consider customizing the tiles and colors. Nothing major necessarily, just different textures for the trees, grass, water, cliffs... the common tiles give each region its own feel. Even GSC used the original RBY tiles to separate Kanto from Johto.