I made a round one as it reminds me of an ornament or bauble.
I diecut 4, but only need 3 circles with a stitched edge. from one I diecut the tree and houses from Clearly Besotted. It's reitred (I got it second hand) but you can use whatever you like of course.
For the background I applied Distress Oxieds: Mermaid Lagoon, Wilted Violet and Picked Raspberry. Splattered it with water and later also Lawn Fawn Liquid Stardust.
Stamped the Santa sleigh with Versafine clair ink. It's from Marianne Design Cs1040.
Mounted the trees and houses with foamtape.
For the back I scored it somewhere at the top, there's no rule for that. Burnished it and attached it with glue to the front.