Technical: Fits the challenge. Exposure composition focus lighting good, though I'd like to see more detail in the white of the stocking. Actually I'd really prefer to see all the colors!
Personal: Good idea. Would've been much more interesting to look at the colorful version!
Good idea; I like the placement of the cards in the stocking. Composition is good as well, with the diagonal of the stocking. I think you should have posted this one in color: the main issue is the exceptionally bright and overexposed white area of the stocking and the very dark background. The colors would have reduced that contrast some, but it might have also been a good idea to use fill lights or natural light to get more exposure on the tree.