The stamp is a Penny Black for their challenge soft and sweet. The dots on the paper and the swiss dots on the Cuttlebug embossing are for Creative Card Crew polka dots challenge. Winter Wonderland's challenge is Santa Claus is coming to town and this little mouse is writing to Father Christmouse. The last one is One Stop Craft Challenge Good Sense of Humour. You probably can't read the letter but he is asking for some sugar mice, a Tom and Jerry video and a mousetrap game amongst other things.
Just found out my 3rd win is with Stamps for Fun so maybe I'm not going to win the lottery after all, shame. However the prize from Stamps with Fun of a voucher for some digi stamps was a lovely surprise.