Welcome to class!
We are using Tulips in Hobnail Pitcher by Power Poppy Stamps.
Purchase the image from Power Poppy Stamps HERE.
When you open your image it will be 3.25" x 3.25". I sized mine to fit on 7" x 5" piece of Neenah 80lb Solar White card stock. Mostly so it would be bigger so you can see the results better. You can make your any size you would like to work with. Although bigger does make it easier to practice on.