The second Christmas pic is not really about Christmas since Christmas doesn't exist in the world of Brehnna. What does exist though are holidays that the different races celebrates, which for some reason takes place in the same week.
Scholars are doing their best to investigate if it's all a coincidence or if all the cultures no matter how far apart they are connected by some kind of older culture. No matter what so is it a good way for all the races to celebrate together.