Gorgeous blocks!!! :D
I don't have an answer but just love them!!

Beautiful blocks. They just glow.

I love the way the blocks connect and continue on! Don't break them up.

Those blocks are designed to join each other side to side and top to bottom. Sashing would destroy the overall pattern.it is really going o be a spectacular quilt and your color choices are fantastic. Good job.

Either way would be beautiful! It would have to be a special panel to do justice to what you have already accomplished. :)

I think the idea of a center panel would be nice... they really are beautiful blocks, but a calmer center panel might give your eye an area to rest for second. The right borders and sashes would do it too as one quilter already suggested.

I just did a baby quilt using very similar colors! These are the colors my son/daughter-in-law picked for their nursery (it's a boy).

Sharing just for funzies... : )
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I think it will be great as one but if your set on breaking it up, what about sashing, then four rows of your blocks then sashing, then four rows, then sashing. I hope that makes sense. It would keep your pattern design.

I think just the blocks would be amazing, maybe even sashing them with another color?

Gorgeous colors. What a sharp looking block. Your plan sounds good to me.

I love it the way you have it here.