I finally picked out the artwork for above the fireplace! I am really happy with the white frames and matting; I think it creates a great balance with the mantle. Yay for success!
Now I just have to decide what to do above the couch... Right now I just have my xmas wreath up now, but I think I am going to buy a white frame to parallel these frames but one appropriately sized and horizontal. I am going to do a few sketches and see how they look with about 3 inches of matting in the larger frame, and I think that will be good. Then if I do about 4 different sketches I can change them out intermittently!