These days, so many people cross cut a striped binding, and I think it looks cute that way. Funny in a cheerful way. :-) The key for me is if the fabric look too busy together. That's a downfall of mine! I'm always thinking I've put too many prints together after the block is done, while before it, they seemed okay together. Maybe for that reason, I think the sashes on the lilac quilt look great! They don't seem too busy at all to me.