I recently purchased my first nail art pens & I love them so much! Here I used Zoya Katherine for the base & Sally Hansen Nail Art Pen Orange. It's like drawing with a marker & just so, so easy to use. The very best part? If you mess up, you can just wipe it off & start again like nothing happened!!! This does mean that you'll need to put a topcoat on your art when you're finished but I always do that anyway. I'll be buying more nail art pens soon because they allow me to do all sorts of things I don't have the patience for with a brush.