"you're SWEET" (stamped in Chocolate), the owls (Twilight and Sweet Leaf), and the hearts (Chocolate again) are all stamps from the Whoo's your Valentine stamp set. The larger owl has sparkle eyes. :) The Smokey Plum Cardstock is sponged in the same color and was added to the card because of the accents in the background and texture paper.
While any of these cards can be used for Valentine's day, they are generic enough to be used throughout the year. I hope you enjoy these cards as much as I do!