Like others, I need an idea to go by initially for a card and found this gatefold one at Stampwitch.blog. I decided on the belly band or top card pattern to work with. Both card patterns are on her blog. While I don't know Natalie, I love some of her resources such as Adobe's Color Wheel.
Below is how to cut out paper and score - a tutorial from Stampwitch.blog.
From there, I found a variety of designer papers for background and colored green paper from 'my closet stash!' Here are the initial samples I will share with them BUT will post their finished projects later this week. All of these will have the Teeny Tiny Wishes 'Happy St. Patrick's Day' saying in lower right hand corner as the upper left one currently does.
Other examples




