Prepare the background for the canvas: half a rabbit painted black, the blue of the sky (the same blue as the design on the napkin), then glue the fine paper with gold filaments to the edges of the canvas.
Cut the cardboard mini-boxes in 2, then paint them in the same colors as the gifts carried by the elf. Decorate the gift boxes with silver pearlescent tube-flasks, to materialize the ribbon, make polka dots etc... or place a gift ribbon on a mini-box.