I like the first two but not especially keen on the third. This is a really super way to make an I Spy quilt - I hadn't thought of putting strips around a charm square if whatever size. And quilts don't always need borders. As for the one thst is too blue, try adding a small (no wider than 1" finished) strip between the quilt and whatever border you might like. Adding another color many times gives thst spark a quilt needs.
Sandy in Mooresville, NC