so far so good.
What I might recommend about photo-realism is that your models are going to need much more detail. From Experience, photo-realism requires much study of light; how it bounces, how it behaves with different surfaces, how it reflects. Further research will lead you down the path of materials and environments. Materials get complicated because you have to start considering the finish, how clean the object is, where it is, things like dust, humidity and other such variables.
While you are definitely starting on a good track I'd recommend finding a picture(photo) or an actual room, and aim to build a part of it, recreate the lights and materials that you see and keep at it until you have something that looks like what you see. It is a long learning process, but it is very rewarding in the end.