I don't see any shadows being cast in the pics. Do you have shadows turned off on your lights? Maybe the lights are turned up too bright and with several lights in the room that can wash out your shadows. Also the shadow intensity may be turned to zero in SkyLab. You can't have realism with no shadows. And the weird thing on the right side of the top pic looks like you moved the camera in a little closer and did a plop render... look at the way the floor tiles don't match up and you have a perfect rectangle like with a plop render. Also agree with Erlik about the size of the wood textures. You might want to rethink the checkerboard floor...it's usually the first thing we all use when starting out, because it makes the depth (vanishing point) more obvious, used the texture a lot myself when starting out, usually accompanied by a lot of chrome spheres. (Laughing at myself, not at you)

This is not my "second childhood". I'm not finished with the first one yet.

Time flies like an arrow; fruit flies like a banana.

"I'd like to die peacefully in my sleep like my grandfather....not screaming in terror like the passengers on his bus." - Jack Handy