When my blocks are too small, I try to find a spot to sew another seam just to the outside and then unsew the original seam. Two seams done this way usually give me 1/8 inch more.
If the block is too big, I sew a hair to the inside. When there are points on the outside of the block (like on the tree), I've just made a smaller seam allowance.
Sally Collins says we have to "fix" the blocks as we go along. Dang I'm good with a seam ripper! Occasionally, I've just made the block over.
August Blocks did go together nicely. The V was challenging. Now to get the sashing done & we'll be caught up.