huge hug. Trust me, I know what the feeling is like!
Personally, I like the one with the darker triangles, it adds some pop to the quilt.
What it probably is, you're "too close" to the quilt. It happens to me when I get sick of seeing something over and over again. Make the top, and let it sit a little while. It'll look better after a few days/weeks of not looking at it.