Hi and greetings from the CC. Well, I like the deep richness of your color tones in this shot, esp of the bottom red ornament, the gold looks slightly overprocessed, tho. I think the composition is a little crowded and shots that have one thing to focus on generally do better IMO. The lighting seems ok in most of the shot however, not sure what the fabric is of top bow but your light is producing a strange effect on it. IMO, this is a hard challenge being that we were told to use 'ugly' subjects really, but I think generally in composition try to keep it simple. Hope that helps a little, keep shooting.
Wonderful classic Xmas decoration image, but it doesn't say "tacky" to me. The composition is excellent even with the tight crop. Lighting is a bit too dark and the colors are a bit too saturated for my tastes. Still, going to give a high mark.