They're there, in the lower right hand of the quilt. I'm not sure if that makes it "not right" though.
The pinwheels are all different too. I think if you want it "perfect", you should take it out and re-do it. After all, it's your work.
I made a lovely star quilt some years ago, and only after I had it quilted, bound, and actually on a bed did I realize I had made some mistakes - primarily in the way the stars were "turned" similar to the pinwheels in this quilt. I have never been happy with this quilt since. But I do remember how difficult it was putting it together. (I call it my "shingles" quilt, as I did it when I was in the throes of shingles.)
But if you are generally pleased with it, but I don't think you are exactly or you wouldn't be asking for opinions, you should leave it. I suspect you really do want it perfect, but are hesitant to begin ripping. Go for it. Whichever.