I like the NOEL including the clock. It's the proximity of the mantel to the tree, though, that pulls off the impact. I did it with Red and Black and used a round chalkboard for the O and added a star chalkboard for accent with the year.
Center of Attention: Use your pinecone-filled vase as a centerpiece. Remove the tall branches & place the vase in the middle of the table. Fill clear ornaments with pine clippings. Group pinecones & greenery around the base.