Nicely done. Can't help with the border color though.

My first thought was yellow.

I agree, why not audition some black? See what you think.

Cheerful blocks and whatever color you choose for sashing, I am sure it will be pretty.

I used a three color border. green, pink and yellow. Liz Porter does this often.

White sashing with pinwheel cornerstones in various colors with white.

My instinct would be the white........

I would use black for sashing and one of the bright colors for a cornerstone but of course we're just giving you ideas and I'm sure one of these suggestions will seem just right for your quilt. Love all of your HST quilts!!

I love your quilt, I never thought of changing the layout to make different squares all using the same size HST. You laid out a wonderful quilt. I like the white sashing.

I like this idea best, of course yellow is one of my favorite colors.