Or, I should probably say "Great Aunt Iris" (You may be wondering "what is she talking about now???").
Okay; here's the story:
My mother was taught sewing and needlework by her Aunt Iris in the 1940's. Iris was a school teacher, botanist, grammarian, gosh knows what else, but also a truly excellent seamstress. And she drilled into my mom that if the back of your work doesn't look just as neat and nice as the front, you're doing it incorrectly. (I'd have said "wrong", but I suspect Iris would say "incorrectly" so there you go, homage to Iris.) So . . .
Here's the stars intarsia, front view. Not bad, I like it. I totally broke form this time and measured the pieces of yarn. Yup, measured how long a stitch was, and I've measured out all the bits to piece together each star (I use 2 pieces for each star and for each lining as I split each star in half to minimize carrying the yarn in the back).
And here it is from the back.
I never got to meet my great Aunt Iris, but I think she'd think this passed the test.
But I bet she'd think my color choices are gaudy beyond all belief.