I also managed to make the pinwheels in the wrong size. This sewalong (Simple Whatnots III) has a page of directions for each clue and those directions refer you to a page in the book. Of course the technique is in the book but we are to disregard the size (at least most of the time) and with my brain fog I cannot seem to get this right.
So here are the parts with the correct size pinwheels. I redid them in the right size.
And here is Barb's progress.