I must thank everyone for sensible advice and suggestions - isn't the Internet brilliant? - I settled on the grey/beige which I used in the stars as a skinny border, then yellow (a mustard coloured shirt from the charity shop) as an outer border.
I've cut, pieced and am halfway through sewing the inner border, so just the outer border to go and I will have my top finished - must check that I have enough batting for this, and decide on the backing fabric.
Also, I'm giving some thought as to how to quilt this, and
I did find time to finish the binding and sew a label for the Pick Four quilt - so here is SURE STEPS all set for sleeping under!
Isn't this a lovely design? Making this has been so much fun, from receiving my copy of Sue Abrey's Pick Four through the post, to taking part in the bloghop, to being able to put together the design with confidence, and having a light bulb moment with my machine quilting!
Thank you again, Sue, and I have my next Project from the book already lined up...