Moss rose snack sets that mix and match

Before I put away all those snack sets from the ladies' group tea last week, I made a point of organizing them into two hampers with like pieces grouped together. What struck me, though, was how very many variations there are on this apparently common moss rose design. Do some of you remember the old song from "Sesame Street" that began "One of these things is not like the other"? Well, all four of these plates are not like the other!
The cups, too, had different shapes, handles, and roses. The two at right both have scallops, although it's a bit hard to tell on the cup at lower right.
My favorite of the designs is this one. Those thin "mossy green" leaves are really gold, and if you look at the leaves at far left, you'll see what I mean. I just wasn't able to capture the gilding in my photo.
You can see it a bit more in the teacup. I have six of these sets and really love them. Just wish I could remember how and why I acquired them! 
On the other plates, I found myself studying the number and placement of roses and the lavender flowers among the leaves. Clearly, the cups matching these sets would be the ones with the lavender flowers, right?
But which of these two cups would you pair with this plate? The one on the right, I suppose, since it has more of a scalloped design. I finally realized that if I'm pairing cups with snack plates and can't see much difference in a particular design, my guests won't be too bothered by any mismatched sets, either. Since many of these plates have a number but no back stamp on them, I've decided that absolutely accurate identification of them is simply not going to be a priority. Do you have any pieces that have you scratching your head over which cup goes with which plate or saucer? All I know is that I have 17 of these rose snack sets where I'm positive of the pairing, and 15 are anybody's guess!