I've been working off and on doing a spreadsheet of 49 Leaf Images.
Hardly complete, and I still find new ones.
As things are now, I'm up to at least 4 different runs, maybe as high as 6.
The obvious Pink ones. these so far always have the sides to the portraits, or the lines across the ends of bats. On some cards it can be tough to spot.
The ones with lines across the bats and portraits, but with red instead of Pink.
With lines, but shaded or dark hats
Without the lines regular hats
Without lines Shaded hats.
That's all sort of preliminary. the hat shading may not be consistent, but I think it is.
Where the background does not make a line across a bat, the yellow extends to the edge, but the black does not. On ones with the lines, the yellow often doesn't extend to the edge, but I have seen at least one where it does.
Most of the easily recognizable color differences are consistent with only one version.
I believe the yellow backgrounds Like the Johnson here are a different printing where no blue was used to mix with yellow.
An amazingly complex set for just 50 cards. (I think of the rare numbers as their own set. )