Take all of the squares out except the ones with the teal blue. Lay them out and see if you like that combination better.
The teal blue will catch your eye and be the focus point and all of the nice soothing neutrals will support it. I think the blues don't look very harmonious and can't tell you why.
Regardless, I think it will be a beautiful quilt---just simplify the colors.
For what its worth, I also have a daughter who doesn't like tradional quilt designs and just may duplicate your blocks. I bought neutral tans and brown already, too....It's on my "to do" list. I have really been having a hard time deciding what block to make so understand your delimina.