I began by modeling in Maya, then adding textures in Substance Painter and lighting in Unreal Engine.
The texture size has small and large as appropriate for that object in sizes 1k through 4K export from unreal engine 4 substance painter preset.
Please follow my work at https://www.artstation.com/infinitybit
MA (Autodesk Maya, filesize: 246 MB), FBX (Autodesk FBX, filesize: 246 MB)