Thanks Happy!
Yeah it's a straightforward set-up. Inside a Torus with a Spec shader applied.
An emissive shader applied to rectangle on align to spline spinning inside Torus.
X-Particles with combo of trails and particles emitting from the Torus, with the Torus spinning in opposite direction of the emissive rectangle.
With a single HDRI in background.
There's a slight wind applied to the tree. Just in AE I applied slight cam move towards the layers.
Even though it's straightforward something corrupted the project that prevents me adding keyframes to C4D camera 😅