One on the left looks more realistic, one on the right has way too much saturation, makes it look cartoony. OT, hotlapping:
2017 SBR4 Facelift looks really good! --- Post updated --- yesssssss --- Post updated --- In the Hills with my released 2019 Ibishu Covet!
If the mesh is small/similar enough to the original headlights, I'd suggest mapping them directly to the existing pessima light's material, so you don't have to make new textures.