I have the Emtek Quincy 7" backplate and the Old Town (crystal) knobs on all doors in oil rubbed bronze, except the exterior doors, which have the 9" Quincy back plate in ORB and the Providence (solid metal) knob (also in ORB). I have all wood doors - upstairs I have shaker style (flat panel) doors (one large square up top with two vertical rectangles on bottom, if that makes sense) and downstairs I have exterior doors that are flat panel as well and two random doors that are 5 panel colonial (a closet door and a bath door downstairs). It's not as noticeable a mixture as it appears to be as I type it out!! In any event, the Entek crystal knobs are so pretty and bring a nice element of light relection into the rooms. I really like the crystal knob over the white porcelain, for cleaning too. But i think the black porcelain knob with the pewter could be very sharp.
I don't have any photos, but if I can take some and upload I will... I don't think you can go wrong with Emtek, though - nice knob sets and I just ordered the new "thumbturn" privacy sets for upstairs - they are awesome! You can lock the door from the inside with an actual thumbturn mechanism and you can open the door from the outside with a coin, as opposed to the privacy knob sets that have a small hole in the exterior knob that you can only open with a special tool... They look "vintage" and are really nice, IMO.
Q