Serene

I'd say this is probably the most realistic looking nebula I've made so far. I was getting tired of the older style I was using, which was mostly textured brushes. I wanted to actually paint something, to which this turned out to be 6+ hours of painting with a mouse. Kinda helped to remind me to never leave your Wacom Tablet out where your dog can chew on the cable.

EDIT: Centered the nebula and removed the top part, which I think looked the worst and over did things.