cawsings

Hi! I've been lurking for a few weeks and decided I should ask for a little help. I'm currently working on my first quilt. I took a hand piecing (and a hand piecing) class about a month ago and have been working on piecing the squares. I learned the "Ohio Star" square in my class and found a layout online that I liked to go with the Ohio Star http://crazymomquilts.blogspot.com/2...ng-week-1.html
Instead of the different types of stars, I figured I would use the Ohio Star for all of the star blocks and an off-white/green setting square.
I have completed 6 of each type of block...and laid them out earlier. I am thinking the colors don't really work (the off-white with the darkness of the other block). I haven't done any of the sashing strips...so maybe that will help tie it all together. What do you think? Should I rethink the setting squares?

Thanks in advance!!!