I saw this fold for a card quite a while ago on Mary Fish's blog and thought is was unique and wanted to make a couple of cards with it and this is what I came up with.
This card cuts measures 9" x 4 1/4" and is folded at 3 3/4" so when folded it fits into a regular A2 envelope. I had to use a giant clothespin to keep it closed because it kept trying to spring open so that is the pink you see at the bottom of the above picture.
I love the eggplant purple and the gumball green colors together.
I also love the stamp set from SU! called Vintage Vogue. I stamped the flowers and then used snips to cut out each flower. I attached them to the card with glue dots. Simple pearls added in the centers finished off the cards.
I hope you try this fold. It really did turn out pretty.