This is only laid out to see what it would look like, I am excited. But which of the colors would you do the back with.

Since it looks like you're planning to bind in the pink, I think I would use the yellowish color on the back. It's very pretty! :-D :-D

I'm a fan of muslin myself oh and sheets that I find on clearance :) If you want actual fabric I vote for the white fabric that has the red in it.

I would either use the yellow solid or the small pink floral on white background fabric as the backing.

Ditto

The yellow-ish color on the back would look nice since you're binding with the pink.

Maybe the fabric that is the second border on the squares.

the yellow print if you have enough.
judy

Do you have leftovers? or are you purchasing more fabric?

Any of your fabrics would be nice .... or do a scrappy backing using all your leftovers.

It's going to be a lovely quilt!

I would do the Pink as the back color.