Take 1 photo. Add a particle simulation. Add a particle to the simulation. Watch as this single particle floats around the screen. It is attracted to bright areas. It looks at its immediate surroundings, and locates the direction in which it will find the brightest pixels, and it goes in that direction. As it does so, it gobbles up the light, and adopts its color. As it gobbles up the light, it grows in size, until it settles into a position in which it cannot move to an area which is any brighter than the one it's already found.
Add another particle. It behaves much the same as the last particle, except that it cannot occupy the same space as the previous particle. It is repelled by its presence.
Add another, which behaves as the previous particles, but is repelled by them.
Keep adding particles until the entire canvas is covered in these hungry particles that cluster around the brightest areas, and are nourished by them. The largest particles will be covering the brightest areas, while smaller, malnourished dark particles will have been sequestered to the dark corners of the image.
Once this ecosystem has been saturated, the boundaries of each circular particle can become loose, like jelly. each boundary becomes a new particle simulation, each circlular boundary subdivided into smaller interconnected particles. The interconnected particles are attracted to eachother, and in isolation, pull together, like the skin of a bubble. Their resting state is the size of the original particle, at this resting state, the particles are repelled at exactly the correct distance for this resting size to occur.
At the same time, all the particles across the entire canvas are attracted to eachother- or more specifically, they are attracted to the particles nearest to them.
While the compulsion is for the boundaries to remain circular, there is a stronger compulsion to spread out, and meet with the surrounding boundaries, and form a more complex shape. The forces at work across the canvass will eventually come to a balancing point, where no more movement will occurr. This resting state will be composed of a number of well fitted shapes, colored appropriately, and sized according to brightness. They will be well enmeshed together, and form a faceted image which maintains organic and geometric qualities at once.