Creating 'neon' in photoshop CS3

For my 2D character design, I've been researching how to create 'neon' effect in Photoshop...

here's a great tutorial link...https://www.youtube.com/watch?v=mMpk_bk1L0I&index=22&list=PLR6NkeqscAx1G47ES3keltSaZi4DNOpXk

And this is my first attempt, using a sketch of an eye I created in a sketch book....
Just off now to do some life drawing, which will give me some new figures to turn into neon, and practice creating a sharper, sketchier line.....