Of course, the sensible thing would be to use an existing game engine, but after a certain point, there is some curiosity if learning and fighting yet another game engine is really quicker that just writing something from scratch.
Chinese Garden Environment I created in UE4.
All Assets, textures, and concepts were created by me using Photoshop, ZBrush, Maya, Substance Designer / Painter.
Fox Room Environment I created in UE4. All Assets, textures and concepts were created by me using Photoshop, ZBrush, Maya, Substance Designer / Painter.