Strangers to sisters with age swap magic

Finally got around doing a compilation of the panels SomariaMoon has been commissioning over the past few months, starring her and I age swapping back and forth, first with me turning Milf mode and Somaria turned into a baby, then she gets to be the mom, then she's a little ballerina child and I'm normal age, then she's normal age and now I'm the little girl, then we finally reach a balance and both of us end up as teenagers, me as a nerd girl and Somaria as a cheerleader.

Here you can see the separate panels:

Is there some sort of diagram to explain this then? Like:

- - + +
++ - -
- +
+ -
=

Will there be new additions to this set?
Maybe, quite possibly, we'll have to wait and see :3c