(I stopped using paper and pencil years ago. This is created digitally, using a Wacom Tablet.)
(After creating a rough sketch of the image.
I'd re-sketch over it, and end up with a cleaner image to work with.)
(Re-draw again with black lines, so the artwork starts to come to life.
This is a very important process in comic/manga and cartoon creation.)
(Filling in the appropriate colors for each different parts of the image.)
(I use cel-shade technique to color most of my artworks.
No, you don't need to go to art-school to learn this stuff.
Athough I did took a few sketch classes very... long time ago, but was mostly self taught.)
Finally, Background Highlights and Hair.
And Sometimes I like to add an alternative version.
But it's time consuming.
Creating an artwork like this, takes hours.