Feel free to point and laugh at Lindina. <_< A main character? With no parents? WHO IS ANGSTY ABOUT IT? Deserves nothing but ridicule. Aaaanyway...
I posted the following comment on the previous page, then realized it made more sense here, so I deleted it there. XP Because I'm crazy like that.
I use Faber-Castell PITT artist pens (esp. S and F) and ZIG Millennium (esp. 01). See http://myaka.freeyellow.com/image/pens.jpg for what they look like. I use photoshop to apply the tones.
If you'd like more specific tips on how I get the line quality that I do, feel free to pm me. ^_^ I'm still experimenting myself, but I'll be happy to share what I've come up with so far.