When you look around at the world what do you see?
Do you see solid shapes and forms that seem to be in a fixed state of existance?
I would think the answer is yes, because that is how we are meant to percieve the world with our human eyes. But this is only an illusion, the world is not made up of solid forms. It is made up of an infinite number of tiny worlds coming together to create the one that we perceive.
That is the concept behind this style, it is the desire to convey that sense that we are all made of smaller parts coming together to create the whole. This way of creating an illustration holds so much beauty because of its desire to show the world in a more truthful light. It allows individual colours to shine through while still maintaining integrity to the larger composition.