I can use this! Love how you have used 9 patch blocks but how did you do the triangle ones? I have found probably 60 9 patch blocks that my mother made many years ago and I'd like to put them together.
As to your project, I'd not use the solid gray in the border. It's rather stark. I do like the one with the design if you want to stick with gray. I might consider a skinny first border of the dark green that's in the one 9 patch to the left of your design wall. It's "neutral" enough for all the other colors in the quilt. Otherwise, I'd choose something of the "era" of the fabrics in the blocks. And the quilting? (Don't you love those patterns that say "quilt as desired" with no suggestions?) I'd probably outline the stars and then think on simply straight stitching diagonally across the 9 patches