Steve Yeowell began drawing comics purely for pleasure and had no intention of becoming a professional artist. But, after showing his portfolio to Bryan Talbot, he quickly found himself given work by Swiftsure. This resulted in him working with Grant Morrison, who then picked Yeowell to be the sole artist on his new superhero strip Zenith. Zenith started in 2000 AD in 1987 and became extremely popular, running to four full-length series.
Yeowell's work is noted for delicate penmanship and lifelike facial expressions, with a notable economy of style that means that his work suits both colour and monochrome treatment.
Thanks to Dave Evans for sending me the sketch.