These drawings are from the 80s, when I had many published in British Small Press SF & Fantasy magazines.
It's always surprising which drawings people like. This was never one of my best, it's a little robot window cleaner, generating water and power from the solar cells on his back. Here he is plodding up and down the skyscrapers long after humans are no more...
But it made the cover of British small press magazine Foundation, in 1989:
...and someone nominated it for a Hugo award! Probably the highlight of my artistic career until being no-platformed in 2020 by the Morning Star!