Robert L. May illustration -- Rudolph the Red-Nosed Reindeer (a Jaymar Puzzle):
Whitman puzzle featuring Santa Claus and a snowman.
J.F. Kernan illustration of a little boy with English Springer Spaniel puppies - really beautiful picture!
My personal favorite -- Art Frahm illustration of a little girl who finds her Cocker Spaniel puppy in her doll bed.