My inspiration, about dark matter, was based on the creation by hands that appear, out of nothing, and that can create the solar system and other galaxies, where humans occupy our place on Planet Earth.
I performed the following procedure:
I downloaded the image given by @shaka:
https://imgur.com/neWWrnK [Credits: Jeremy Thomas (public domain)]
I selected the following Imac gallery photos:
Next I selected the copyright free images photos:
I removed the background of the images using removal.ai
I made all the modifications with powerpoint.
Then I selected everything and grouped them together and saved them as JPEG.
That is the collage I am showing.