What Bacchus said
I agree with everything Little-Bacchus said, but I can be more a little more helpful. The wood needs a few imperfections, like a very small scale normal map. The wood should look like what wood grain feels like. Also, the cushion should also have a normal texture. Anything would do: a tiny bump-map plus some specularity would make it look leather, or use an image of a woven fabric and apply both as color and as a normal map. Otherwise, great stuff as usual.