I love all things natural and tree like so this challenge is right up my street, and I imagine I shall be taking part more than once!
The first offering I have is a card which uses the Leaf Print dies and uses their negatives. It took a little time (and more than one attempt!) to get the leaves to fit onto the DL size card I was using! Once I was happy with the layout I layered it over some bamboo type background paper in a lovely rusty/autumn colour. I sponged with tea dye distress ink and added a brown ribbon and small labels 4 Nestie onto which I'd stamped a waltzingmouse sentiment.
I hope you like my natural card and are inspired to use the negative dies!