This Santa images is one of my favorites. He is from Whipper Snapper Designs. I used to make a lot of square cards, but stopped because the postage system charges extra to mail them. Early this year, I was introduced to the book-binding card. I love this layout because it has the feel of square card, but meets all the USPS requirements.
If you are interested in trying a book- binding card.. You can cut a piece of cardstock to 4.25 by 11 inches. You will score at 4.25 and 5.5 inch along the long side. I'll make a video on this very soon if this doesn't make sense.
Stardust Pen: Amazon
Bearly Art Glue- Amazon --best glue ever!!
Neenah: solar white card stock
Red and Brown Card stock from Stampin up
Copic colors used: best price I found
Skin: E000, E00, E11, R20
Red: R59, R39, R29, R24, R14
Green: G46, G43, G40, or G28, G24, G21
Black: W10, W8, W6 or any grey series
Chimney: E18, E15, E13 and W3, W5
Grey: C3, C1, C0
Snow: BG00, BG000
Fluff: E40, E41, E42, E43, E44
Gold: Y15, YR23, YR24