For me, it depends on who is singing the carols. If it's one of those groups that looks like they came out of a Dickens novel - capes, bonnets, silk hats, plastered on fake smiles - I want to yell "Get away from me, at least a furlong. And don't look at me"! But if it's a group of cute little kids singing off key, but doing their best, I turn into a puddle of weepiness. I'm a sucker for little kids.
Anyway, I think the tree in your room looks great. I love Christmas. (Except for the Dickensonian Carolers).