i agree with GecT, the chair is too reflective

you know where to change the reflectivity of the material? If you go into the material attributes (there are a few ways to do that, either right click the object in the scene or use the hypershade) somewhere in there is a slider for reflectivity. for blinn materials its usually really high...

as for your couch pillows being so dense in the wireframe, you can convert nurbs to polys and click the option box in the menu, then you can convert it on the CVs instead of the default options.
then to add more detail you'd convert to sub-divisions and back to polys.