Here's a simple way to make a card with dramatic impact using a sweeping curved opening.
10" x 7" sheet of cardstock (1)
inside panel and back of card panel measuring 4 3/4" x 6 3/4" (2)
Score the 10 x 7" sheet of cardstock at 2 1/2" on both the left and the right sides of the 10" side as shown
Fold the scored sections in to close in the canter (gatefold).
Tape the opening closed
Flip the card over to the back and insert the cutting mat as shown.
Cut a long cured opening from the upper left to the lower right side of the card.
Attach (glue) the back panel to the taped opening.
Attach the inside panel to the taped opening.
All ready for decoration - Enjoy!