A simple bus stop.
This is an example of how I use Photoshop. When I start drawing, sometimes in the middle of the process something happens: I lose my interest, I lost the inspiration and went to do something else and forgot to finish the said drawing. So I keep several sketches of drawings by my bedroom / studio. From time to time, as I begin to leaf through some of these sketches, I begin to combine them and thus form complete illustrations. I do each piece separately and together in Photoshop. And that's it.