[Nefer]

Well, I have photoshop, that's why I said I use the computer to add layers ^^ But uh ya, sometimes I manage to remake the lineart really quickly if there's not too many 'eraser and hand passing over the HB pencil marks', but it usually take a while so it depends on how I'm feeling lol.

And wow...All colors were drew seperatly? O.O Personally I usually use the alpha (transparency) feature of the pencil/brush and add multiple lines over/under the color I want to darken/lighten, it gives a smooth effect whenever I don't feel like drawing anime like with all it's 'sudden change of shading' look ^^;