This one was hooking up rather largely for me (Margaret warns of this in her pattern). By the time I completed the circle part, I knew it would be too big for my blanket. I stopped after completing Round 7 (the treble cluster petals) and did the following to turn the circle into a square:
This one hooked up pretty quickly, but I did need to pay attention to skipped stitches (she doesn't always specify). Also, I did the last round in half-double crochet to get it to match the size of the rest of my squares.
This one, like last week's, had another intricate center. It is pretty, but lots of stitching and tacking down. Not a square I would want to make an entire blanket out of. This is why I enjoy making these mixed-square blankets: you get to try out lots of different techniques and stitches. And if it's a challenging block, you only have to make one.