A model based on the Kirin Sofa by Oly in first 19th century style. Material settings for Blender internal render.
Very nice detail, especially on the wood work.
I"m new to Blender, but I have a lot of experience in Photohshop, so take my comments with a grain of salt.
I haven't downloaded your model so my comments are based on your picture.
It seems to me that the cloud texture on the sofa material is over done. I think it needs to be more subtle. Additionally, I think it would be more appealing if the sofa had a more "worn" look to it as if people had been sitting in it for many years. The cushions look to stiff and unused.
Finally, from a purely marketing perspective, I think you would increase the interest in your model if you showed it in a "normal' setting with either other models and/or an appropriate background for the period.
For myself, I'm very interested in modeling colonial American furniture, so I very much appreciate the effort that you've put into this very nice work. I hope to offer something similar in the not to distant future, though my skills are not up to yours at the present.
Thank you BMF for your suggestions, it helps me to improve my work