Black Hole-Blender Practice

I created this Black Hole by following a tutorial created by Iridesium, and the space background was by Ruan3D.
Black Hole Tutorial: https://www.youtube.com/watch?v=5naMFeWTBeY
Space Background Tutorial: https://www.youtube.com/watch?v=XF4LO6Ocw_U
Iridesium's Channel link: https://www.youtube.com/@Iridesium/videos
Ruan3D's Channel link: https://www.youtube.com/@Ruan3D/videos