QA, the circles are a challenge for me too. I finally tore the paper off, and used my sewing skills. If you have ever sewn a blouse/shirt, think "set in sleeves".
I did square up my blocks when I finished each one.
sometimes When I quilt, I don't square them up until I sew them together though. No excuses, it is just the way I do it.
Nice colors, I love the scrappy thing you have going. I am trying to get scrappier.....