A few people asked what brush I use for the stars on Nightmare Moon's mane. I'm pretty sure the original brushmaker doesn't want me re-distributing it with just the settings tweaked, so here's some screenshots instead!
You can get the star brush here, from Obsidian Dawn, as part of the Glitter Brushes pack (the first one, not II). If you download the images instead of the brushes, it should be 'single1.jpg'.
Now you have no excuse not to draw lots of Nightmare! Go forth and spread the word of the New Lunar Republic!
(I used this here: [link])
Helped me out a lot!