Accordion Card... They are not too difficult, but it requires very accurate folding, cutting and gluing for a good result. The accordion should fold down completely flat when pressed together.
Tim Holtz alterations tag
Butterflies and trees are made with dies by Memory Box.
Stamp by Whiff of Joy.
Coloring done with Promarkers and Derwent Coloursoft pencils.
The sentiment is stamped on a tag, and can easily be pulled out from the top of the card. Flip the tag, and there's a hidden pocket for money.
Card closes with magnets.