A new artist for set 2. He did 25 cards, and 5 artist proofs. Several are double-cards. The five artist proofs (two doubles and one single) are all variations of base card images.
Double cards. On ebay at least one of these has been sold separated.
Artist proof cards. The 3 pictures (5 cards) are all variations of base cards, above
There are three variations of one picture- 2 individual cards which aren't actually paired, a double, and an artist proof double.
Space: 1999 copyright ITV Studios Global Entertainment
Thanks to Gordon Moriguchi, Patrick Zimmerman and Karl Jones.