Realistic URP Full-Screen/Post process Shader (Shader Graph only)

I need a custom full-screen effect built in Unity’s Universal Render Pipeline, authored entirely in Shader Graph. The shader will run as a post-process on my game environment and must push a realistic look using tried-and-true “classic” techniques, we can decide on them together.

What I’m after
• A .shadergraph asset that plugs straight into the URP Renderer Feature stack and works in Unity 6.
• No handwritten HLSL—everything inside Shader Graph nodes.
• Optimized

Demo:
1. Short video showcasing the effect

Hand-off package
1. The finished Shader Graph file
2. Any supporting textures/curve assets