Space Suburb

Centre-spread by Graham Bleathman from Space Precinct, dated 5th December 1995.
More GB cutaways here.

The Mad Emperor

Art by Robert Forrest. Knockout, dated 23rd July 1960.

MacTavish of Red Rock

Art by Mike Western. Knockout, dated 1st September 1962.

Von Hoffman's Invasion

Eric Bradbury illustrates this story from Jet, dated 18th September 1971.

Root of the Trouble

Art by Edgar Spenceley. Illustrations for a prose story in the Daily Mail Boys Annual, 19? Not sure, early-to-mid sixties?

Vengeance Comes Unseen

Art by Terry Patrick. The Hotspur, October 21st 1967.

Fishboy

Art by John Stokes from Buster, dated 1st November 1975.