I would go ahead and make the other dark blue blocks,
all the way around and then bind it, if it is big enough by
then. I would not put the light blue (that looks almost
white) as a first border, because having that much light
makes it look like there is a hole in the quilt. It will be
much richer if you finish out eh dark blue blocks all the
way around. Just my 2 cents :).
Have a Blessed Day!