I ordered these for the bedroom but after seeing them in person, I decided they would go much better in the dining room -- they make that space appear more formal than the other pictures I had up.  The frames are wood and they are finished with a silvery-gold glaze over light colored wood. The mattes and prints are gorgeous. I was happy to see that they are even more beautiful in person than online. 

One word of advice:  each picture has a hanger on each side of the back. The hangers weren't level on a couple of pictures. My husband was able to reposition those hangers so that the pictures would be at the same height when hung on a level plane. As others have said, take the time to do it right so that all of the pictures will be at the same height if that's the look you are seeking.