Here's another example of a WIP. I tend to start of with a very simple outline with not a lot of detail. I do this just to get the dimensions correct and things in the right place. The details come later.
Next comes... you guessed it... the ugly beginning of the shading.
Then the next bit...
Aaaaaaaaaand a bit more...
And done!
I really hope I'm not boring you with the WIP's.