Quietfire Design. Love them...
I side folded a white card 5.5"w x 4.25"h. Stamped the sentiment with Versafine Black Onyx. Adhered my quill strip flourish lines, then quilled loose circles in every color, pinching one end and while holding that pinch, pressing down on the opposite side and creating a valley, sliding my pinched fingers up to create my heart shape.
Can't ask for a simpler or CAS card... Click on card image to see a larger version. Enjoy
And it fits for these challenges:
Stamps Fun Creativity #135 Swirls
City Crafter #143 put hearts on it
Totally Gorjuss #167 K.I.S.S
One Stitch at a Time #147 Love
Pile it on Challenge #3 Have a Heart
Trimmie's Craft Challenge #191 Valentine/love
Sisterhood of Crafters Hearts
Digi Stamps 4 Joy #59 Anything goes