This is the exact scene from the Power Grade tutorial — nothing removed, nothing simplified.
Every node, every light, every compositor setup is left exactly as it was in the lesson. You can open it and trace every decision step by step: how the color grading nodes are connected, what values I used, and how the lighting interacts with the grade.
If something in the tutorial went too fast or you want to experiment with settings on a real scene instead of building one from scratch, this is what you need. Break it apart, tweak it, learn from it.