Today's review of NECA's Kenner-style Gorilla Alien said that the creature it emerged from was shown in the comic. Here, take a look:
As a bonus, here's the original concept art of the character created for the toyline:
Quite different, eh? A double-layered crest, thick limbs, wings, nostrils... not at all like the figure we eventually got. They even had a simplified version intended for animation.
The design art was used a few times on packaging, but that's it.