It's kind of like an unfolding present. Here I went for loads of texture and a theme of back to nature from the built up landscape. So, the front of my card uses brick and grass DP and a piece of guilded embossed card to look like metal, with a faux leather cover to the fold out bit. A town park in miniature.
And inside there are rocks and wood. I used a bold sentiment stamp from Delightful Dozen and left one panel bare for writing a message to the recipient.
Too arty? I am often looking for a theme these days to inspire my card making. I did have fun with this one and used up a few scraps, which is always good. If you want to try the challenge here it is