Images found in two 1980s books, Naoyuki Katoh SF Illustrations I and II (there's also a volume III), which I occasionally have for sale at 50 Watts Books.

Naoyuki Katoh, Voyage of the Space Beagle, c 1980s

Naoyuki Katoh, c1980s

Naoyuki Katoh, c1980s

Naoyuki Katoh, c1980s

Naoyuki Katoh, c1980s

Naoyuki Katoh, c1980s

Naoyuki Katoh, c1980s

Naoyuki Katoh, c1980s

Naoyuki Katoh, c1980s

Naoyuki Katoh, c1980s

Naoyuki Katoh, c1980s