You could do the BOO letters in Black, Orange, and Green. You could do something similar with FALL. Front Door Decorations for Halloween. Could do FALL instead in brown with orange ribbon so it could stay up for more than just Halloween
This says to spray paint fake flowers but these are handmade paper flowers. I don't think fake flowers would take spray paint well.---"Spraypaint fake flowers, glue to canvas. this would make really pretty art for the guest bedroom.