Most wall art looks best when hung at eye level or slightly lower than eye level. Keep in mind how the art will be viewed most often (from a standing or sitting position). Also, consider where the picture is being hung. For children's rooms, hang kids art at the eye level of the child. When hanging art above furniture, have twice as much space above the art than below it. A general guideline to follow for framed artwork is 4 to 8 inches from the surface of the furniture to the bottom of the frame. For framed art prints, a good rule of thumb is to center the frame 60 inches off the floor. To do this, measure the height of the frame and divide by two. Then measure the space from the wire to the top of the frame and subtract this number from the first number. Now add 60 inches to this figure. This is the point to insert the hook. When your picture hangs from the hook it should hang approximately one-third from the top of the frame.

I dunno, do you like this (from our recently remodeled livingroom w/open entry area? Like Kah says, the easiest place to start is from color -- at least that's what my designer wife did first.

http://www.stevesblindsandwallpaper.com/wallpaper/productdetailpricing.aspx?pn=CX1211&ctg=1885&rkg_id=h-a7c5f2e064cae264e08d06eb027be207_t-1456200827&adpos=1o1&creative=48192656442&device=c&matchtype=&network=g&gclid=CjwKEAiAgKu2BRDu1OGw3-KXokwSJAB_Yy2QWK4nTKLJgbsugtPh5LH7c8hwwNPCvoZUnS_HtC0mDBoCj1Tw_wcB

Hi, an entire wall mirror would look stunning but you're right the maintenance of it would be a never ending task! Have you thought about multi facet mirrors? These are glass framed mirrors and usually have bevelled glass and a contemporary style. Their designs allow them to reflect the light and project it around your home creating a dazzling feel. You could feature multiple of these in your dining room wall. Something like this below: Have a look at our multi facet mirrors page here where you'll find these mirrors. http://bit.ly/1nGVz6r  If you want you could use 2 or 3 to create the appearance of a mirrored wall without covering the entire wall. Hope this helps!