This is just for fun. I call it “Autumn burst” because the smoke reminds me of a puffball with autumn colors.
It’s not a project of its own but one of many failed attempts in creating a nebula in another project.
Great! How many particles did you use?
I used the voxel fluid simulator so no particles. But the resolution of the voxel grid was 256x256 and the smoke high res divisions was set to 2.