i think it's wonderful!!
i would add a border all around, either black and one of the other colors, or just black if not. i, myself, vote for all black. i would make the border 10". it sounds like a lot, but that panel has a lot going on, there. the total would then be 90". a great size for a queen bed. i would quilt around the motif. wow!
the alternative is to send it t me and i will send you more than $1.00. should i pm my address?