Colouring bitmaps

[Frankenstein]

Thanks..looks like it's back to the..erm..drawing board for me...

[siran]

Could you describe in a little more detail what exactly the workflow is and what kind of bitmap the result of your scan is?
The first thing that comes to my mind is to try a bitmap trace and color the resulting shapes, but there are many members here with a lot of more experience in that.