I scanned my photos and, in my computer, painted out the backgrounds around each animal.  Then I used image-processing software to generate variations of each animal.  Several different effects were applied in sequence to produce each animal variation.

But these computer-generated versions alone were not satisfactory.

So I printed out each variation of each animal and then used color pencils and pens to add definition and highlights.  Some animals received considerable hand-coloring to add details not present in the photos or lost during computer processing.

Software used:  Corel Draw, Corel Photo House, Corel Photo Paint, Microsoft Photo House.

The final color reproductions are hand-tipped onto the card fronts.
What does this mean?