This is a traditional Mohawk foiling pattern, most stylists stick to this pattern of horizontal section on the top of the head, and the same horizontal sections on the sides & back. There's nothing wrong with this method, but think that you should be cutting first and then coloring to what your cut is to accent that cut. Here we have a long haired client, so it perfect for the Mohawk.
Traditional Foil Pattern -
After MOHAWK TOP AND DIAGONAL SIDE FOILS