@Anna T: Even more puzzlingly, he appears to have a full spacesuit in the cargo area of his pizza cutter bike.
Unless… that’s a dead body, salvaged from the crashed spaceship. Mr. First On Mars has been flagging and looting later ships. It would explain why his transportation is so odd; he’s built it out of spare parts from wrecks.
I thought the artist was going for really small craters but the one above the authors name is undeniably a spider. Now I have the irresistible urge to check the inside cover for the inscription “Property of David Jones aged 10½”.
@GSS ex-noob – I, too, wondered why this guy doesn’t put on what looks like a real space suit if he’s got one…trying to look tough? My second thought was to wonder why his very thin metal wheels aren’t cutting deep furrows in the ground…
@HappyBookworm: Could be earlier speculation is correct and the bike doesn’t actually move. It’s just parked there and he’s sitting on it, maybe posing for a tough-guy photo, maybe saying “vroom vroom!”