Now this is the fun part. After you have done the basic fills , then you go over it with your fades and more colors, this is where the improvisational aspect of graffiti takes shape. Here I am redefining edges of the letter with yet another shade of blue,..."cutting" the letter up so it becomes more visually interesting. In situations like this one can have a lot of layers of shading going over the piece. It can be tricky depending on the weather, and on this day the wind decided that it should pick up. Not good. Your paint goes into the air and not onto the wall were it belongs.