The Samsung Galaxy S7 have been photographed a couple of times, but both were painted black. Here's a new leak that shows the upcoming flagship (both front and back) in Gold.
The photos are head on, so you can't quite see it, but the back has curved left and right sides on the back, similar to the Galaxy Note5. Also, the camera will stick out just 0.8mm, a lower profile than the 1.7mm of the S6.
Samsung Galaxy S7 in Gold (unofficial images)
Not pictured, but apparently, the USB port on the bottom of the phone is the old-school micro 2.0 type.
Source (in Spanish) | Via