I would run a repeat of the inner border all the way up the sides past the pinwheels on top and bottom, slightly wider, gold blue black then add just black across the top and bottom.

I love the pinwheels down the sides. You can add whatever you want for a border from here and it would look great. Something like repeating the inner border but in reverse - I mean since it is for a baby the black border might not look too babyish. And for what it's worth -- I like a square baby quilt. It's so much easier to wrap up the baby with a square than a rectangle... The whole thing is very cute

Ditto

I think it is amazing with the pinwheels, but Sue had a great idea too, if you think its too busy....anyways, love it!!

Could you maybe add a small sashing around each block so the light color doesn't run all together...kinda like a stained glass effect?

Looks really nice....I like them across the top and bottom ...but look at my avatar and that will say why.

Looks good however you want it.

The center panel looks so small in comparison to those pinwheels and seems to get lost. Maybe another wider inner border, or as someone said above, stagger the pinwheels between a solid block to break it up a bit.

How about down one side, the across the bottom? It would keep it's shape that way, then you could add another border or two around that? Would that work, just a thought? Nice work!

I do like them down the sides too.

I don't like the pinwheels down the sides either...I think top bottom and then border with a thin blue border around all the white and then switch to white along the center black sides. Then a larger border all around...yellow or?

How about putting 3 along each side, just like the top & bottom, and then putting a plain white on each corner, with a design of your choice to be quilted in those corners. That would certainly change the look, I think. Just a thought...