Better Creeper Animations Mod will improve creepers, add smoother and better animations. And the features of their appearance will correspond to the biome.
Cinematic Visuals Shader (Vibrant Visuals Pack) gives Minecraft Bedrock a film-ready look: PBR materials, reflections, new caustics, improved water, godrays, a smarter tonemap, biome color fixes, volumetric fog, and a fresh sun path.