First let me say its your quilt and if ya want green go for it!!!!
with that said, IMHO green was way over powering, the only thing my eye caught was teh green and not much else.. And the blue, it matches well and from my perspective from your pic it blends in a lil too much... too much blue...the actual blocks dont stand out, what about using the blue for sashing but add cornerstones to give it a lil umph.. or blocking the block perhaps... Again, your quilt your rules, just giving my two cents...