I think you have a real nice balance; that yellow makes the blocks stand out (and I'm not a yellow fan). I'm going to humbly disagree with Anael about the "solid" looking block. I ended up with a few that read "solid" without the background fabric visible and when scattered around the quilt top they seem to break up the quilt and give your eye a place to stop. If that's the only one, yes, I would remove it but I think maybe 4 that read solid and scattered around add something. Again this is just my VERY humble opinion.