A flat tileset doesn't make a Gen 4 game. You need the feel . Here are advanced scripting and mapping tricks for your Pokémon Essentials Gen 4 tileset.
Simply having the tiles isn’t enough. You need to map like Game Freak’s Gen 4 team. pokemon essentials gen 4 tileset
In DPPt, trees aren’t just a trunk and top. They use three layers: A flat tileset doesn't make a Gen 4 game