Thanks for the quick reply! is there by chance a tutorial for doing this? I am really new to XP!Gen 4 and 5 are pretty different styles, but yeah, you can do any style you want, even a style from another game or an entirely unique style. You just need to format it for RPG Maker XP.
thank you so much!Radical Raptr has a guide here for overworlds. (There's packs for existing sprites already in the Resources section, though, so you don't need to worry about doing them all yourself)