I'm still not liking that blue. I think the fabric on the top and bottom would work. I often do this because I don't like making square quilts or I need more length. I am not sure about the buttons fabric. I know it is coordinating fabric, but I can't tell from the picture if it distracts from the blocks. Maybe a narrow border of this. I like the red for a border and/or binding. Do you have more of the cream? yellow? that you used on the blocks for one of the borders. I really like that color with the main fabric.