The sun (Soleil Points by Stampendous) was stamped with a permanent black ink pad (StazOn) and then different colors of liquid ink were dropped and allowed to mingle and then dry. I used Adirondack Alcohol Inks by Tim Holtz. The inked side faces the cardstock and is then attached.
The greeting was made with Microsoft Word and printed on acetate made for my printer. This was also attached with four eyelets.
As you can see from this side view, there is an upside down "v" shape on the inside flap. This is called a "mountain fold". This flap has a quarter inch flap that glues to the back to close the card. The card stands by itself and also folds flat to fit an envelope.
This diagram shows the measurements I used on an 11 inch piece of cardstock. These measurements can be altered to suit your paper and the size you wish to make your card. The lines need to be creased with a bone folder and folded as the picture shows. I attached the quarter inch fold to the back with some double sided tape for strength. For a larger version of the diagram go here.