WIP Collage

I have started working on a collage project that has two different parts. The first part, which I have almost finished, is supposed to show a more negative side of people and the planet. The second side, which I have no started yet, is supposed to be the exact opposite, showing a lighter side of life. The "dark side" is the image below.

My plan for the final collage is to have both the light and dark side collages incased in windows, as if the viewer is looking into two different worlds. I still need to figure out how I want to embellish said windows, but I have a feeling that, as I continue working, my thoughts and ideas will come together and combine into the finished product.