Imagination is more important than knowledge.
This page doesn't have any of those spectacular 3-D cards on it. They don't translate well onto a web page and you'll get a much better idea of what to do with more complicated techniques by going to your local stamp store and seeing samples up close. In fact, none of the cards on this page go beyond simple masking. A beginner with a little imagination can easily master enough technique to create designs like these. Dye-based ink on Kromecoat card stock.