I'm doing the APQS "UFO Challenge" this year to try to knock down that stack a bit.Just about a year ago I finished a plus sign pillow - here http://quiltbabe8.blogspot.com/2015/01/back-to-real-life.html is a bad picture of it. Getting them to interlock was a pain, but once I had it correctly on the design wall, it got easier.
You and I were on the same wavelength. I was working with neutrals, too. You win!! I only managed the pressing.
Well, those two blocks were a plus!
It's nice to move things forward. Your plus blocks will make a fun quilt.