I really like the Moto G5 Plus design. The thing is that at the front it doesn't look so special (usually like in most phones, except the one with 3D curved display). However, the sides and the back really look stunning. It's not an expensive phone, but it does look like one. The Moto G Plus features high-grade aluminum build with diamond cut edges. There some really polished lines with high reflections wrapping around the back. There is also a fine line that beautifully curves at the top. I don't if that is the antenna line or just a cut at the back, but it looks really nice. Even the camera bulge at the back doesn't interfere with the flow of the design too much because of the shiny metal wrapper around the protruding part that gives the camera compartment a very luxurious look.
So what Motorola did was adding different amount of textures to each area of the phone. The lines around the phone, the front edges and the camera housing is more reflective, whether the body itself has a more matte finish. This is much better than making the whole phone glossy like Sony did with its Xperia XZ Premium. This is a much better looking phone in my opinion, because of the unique design touches that applied to each section of the phone.
Many phones look great when rendered on the computer because companies apply perfect lighting in a 3D software that makes them look great, but I've seen a video by Charbax on YouTube, showcasing the gold and grey Moto G5 Plus, and they look even better than in the renders. This is because the dynamic lighting effect that is created when you rotate the device. Just take a look at this video and you can see what I mean.
The Motoroloa Moto G5 Plus is a beautiful device. I personally prefer the gold version, but the grey one looks great as well. You can also see that the home button has a metal line wrapping it. So the Moto G5 Plus has a very modern, modern, sleek and premium look, which is always great, especially for those paying attention to the phone's look as part of their buying decision.