Crystal Generator-Blender Practise

I created this asset by following a tutorial by Joey Carlino: https://www.youtube.com/watch?v=hTGN7b4SmTw.
The rock material for the cube-based structure was made by following a tutorial by Cartesian Caramel: https://www.youtube.com/watch?v=3ES0s71p_X4.
I created the Nebula in the Background following a tutorial by Joepavitt3d: https://www.youtube.com/watch?v=db-qfZBhBe4.
I created the Vignette effect by following a tutorial by Ryan King Art: https://www.youtube.com/watch?v=0RyaSB9qyL8.
I am currently using Blender 4.2, so I used a tutorial by Michael Bridges to recreate the Bloom effect for the Asset since it has been replaced with Ray-Tracing: https://www.youtube.com/watch?v=M_OlXyyMIW0.