Create a festive Christmas holiday card featuring four Teenage Mutant Ninja Turtles (Leonardo, Donatello, Raphael, and Michelangelo) in a snowy cityscape. They should be wearing Santa hats and scarves, with their weapons replaced by candy canes. The turtles should be cheerfully interacting with each other. At the top or bottom, there should be a banner with the message ‘Happy Holidays’ written in a fun, comic-style font.