We see a lot of fantastic concept designs for existing user interfaces for big names such as Google and Amazon. These behemoths have perfectly functioning infrastructures that can be improved in minor ways, which is why many a creative designer will take potshots at them by showcasing their own innovative prototypes.
As conceptual designs go, this one of Amazon for its Black Friday sale, is very grounded and only seeks to modify and tweak elements rather than giving it an overhaul. I am left with the overall impression polish and modern embellishments.
For more work by Alessandro Pelly Benassi, find him on Behance.