There are two versions:
Newb Shader - For MCPE 1.18.12 (Android and iOS only)
Newb X Legacy - For MCPE 1.20 RenderDragon (Android and Windows)

To install Newb X Legacy, you have to follow an installation guide. You will find guide in download website.

Features:

Lighting: Features customizable natural soft lighting with many subtle details.
Clouds: The clouds are soft and adapt with rain.
Sky: A natural-looking, bright sky that gives the shader an aesthetic feel.
Water: A calm and relaxing water that's truly lightweight yet looks beautiful.
Underwater: A bluish-foggy view with soft caustics.
Foliage wave: A subtle natural wave animation that applies to grass, leaves, vines and crops.
Lantern swing: Probably something you don't find in most MCPE shaders, a swinging lantern.
Depth: A smooth foggy layer that blends across the horizon, with an added misty layer that gives more depth to your world. 
Rain weather: Something many users like about this shader is the rainy weather. 
Entities: Entities have a soft ambient around them.
Color correction: Uses a very common tone mapping method, yet it still gives Newb Shader a distinct color tone. 
Sun/Moon: A 3D looking vanilla moon, with all the moon phases. The sun is stunningly smooth, yet it preserves the vanilla vibe.
Glowy Ores: The ores glow in darkness, making it easier to spot.
Auroras: The night sky is enhanced with aurora lights that change over time.

Screenshots:

*Screenshots are from old version (Newb Shader 1.1.9)

Video:

Recommended settings:

• Beautiful sky - on
• Smooth shading - on
• Brightness - 80%

GitHub:

• https://github.com/devendrn/newb-shader-mcbe
• https://github.com/devendrn/newb-x-mcbe

Discord Server:

• https://discord.gg/newb-community-844591537430069279

Copyright:

• MIT License © devendrn

Mentions:

• Suggestions/bug fix help/ideas:
     - Bravo6, HendricK sHaDoW, TatsuyaHikki, ggVictor, GroundBeefmc, Dhikka, Clover
• Screenshots:
     - FxSlow_-, nick name, irfanmib07yt, ColosoLoco, Daruma, CuteBoii