That yellow is really not that bright. It's actually a little more green, similar to the green in the fabric at the top left, and in the picture below.
I've got all my fabric cut (except borders) and I've started to do some of the sewing, including these half circles.
I need to trim the circles so I can turn them right side out. I could have used pinking shears, but I loaned them out and don't have them here so I was cutting little notches around the curved edge. After cutting and clipping four or five of these, I remembered that I own a pinking rotary cutter. Oh my! That made this task go so much faster!
I'll post a few more pictures soon; but I won't be revealing the quilt for quilt a while yet.