PROCESS- Space study

I have several tattoos coming up that will have an outer space nebula kind of theme to them, so I decided to experiment a little in photoshop to see what would look cool. I started by making a custom cloud brush. Then by painting on several separate layers, I got what you see here. I decided to throw in a few meteors too just to see what they'd look like. Obviously doing something in Photoshop is nothing like tattooing, but I'd rather experiment on the computer than on someone's skin!