It's not necessarily making 'picturesque' geometric patterns that interests me. It's pushing the software again and again, repeating the same manoeuvre on the computer, and then seeing what the ragged edges look like. It's these 'edgelands' that interest me the most.
Below: Let's Twist / Digital Vector Drawing
Below: Unretouched photograph of office block next to Snow Hill Station, Birmingham.
Below: Same photo glitched in Wordpad