The background is a script stamp done with a Stampin' Up Ink Spot. The ovals are Spellbinders. Both stamps were purchased at Carousel. The flowers are colored in with Copics and the glitter accents are Stickles. Both the flower and the "Thanks so much" are popped to add dimension.
**edited to add**
This is the original card from Pinterest that inspired me:
I think it's absolutely gorgeous! I love the stamps she used :)