This “fancy fold” is a diorama fold. Flat, it fits into a standard A2 envelope (it can be folded to 5¼” x 4¼”). With a very little persuasion, it opens up into this 3-D card. This was made by a swap partner, Karen Long. She did a beautiful job!
Stamps: Holy Family (Holiday Mini p. 23)
Paper: Soft Suede, Always Artichoke, Very Vanilla
Other: Heat Tool and Stampin’ Emboss Powder (Gold), Circle Scissors Plus and Glass Mat, Brads (Gold), Stampin’ Dimensionals