Christmas is celebrated by the “good guys” in the realm such as the Queen and Eileen. They acknowledge God as their boss and acknowledge Jesus’s miracles as being far above anything they could do. The season is not celebrated in quite the same way as Christians do so on Earth. There is a smaller festive banquet and people exchange one gift with one person. It is also expected that fairies will grant either one special (non selfish) wish on that day or will do something particularly good to salute the day by. The favourite part of the Christmas story is the visit by the angels to the shepherds. The Fairy Kingdom thinks peace on Earth is long over due and blames the species responsible - humans.
The Kingdom also remembers Easter and again acknowledges the supremacy of God’s power regarding the resurrection. The fairy world has absolutely no idea where the Easter bunny comes from though - it is not their idea. The Queen and Eileen both adore chocolate, thinking it one of humanity’s better ideas. They both adore new life coming along in the spring though in their world it leads to the birth of new dragons, orcs, trolls and so on. The latter two are not a problem as long as they’re in the Queen’s employment! Neither the Queen nor Eileen like “cutesy” stuff - the Queen thinks it demeaning and Eileen just wants to throw up when she comes across any examples of it. Not for her and Derek the “with all my love to my darling Bunnikins.” Indeed Eileen feels those writing such things need a decent dunking in the nearest horse trough in the hope it will encourage some sense and get people expressing love for their spouses/partners in a sensible manner.