It looks like you used watercolor-type Batiks, i.e., Hoffman or similar in most of your blocks and a handful of Batiks with a 'stronger' - much more contrast - print some other blocks. For example, Row 1, 3rd from the right (you have 3 of these blocks), Row 2, 2nd from the right (2 of these blocks) and Row 4, 2nd from the left (2 blocks). What if you replaced those blocks with others using watercolor Batiks? Use those 7 blocks on the back of your quilt!
Maybe using a variety of watercolor Batiks throughout your quilt might give it a better look.
Just my humble opinion - - - -
Jane