The outside parking lot looks pretty okay. But the interior just looks a little, nooby I guess. It just seems like you could have added much more detail in the interior, I see many spots where you could replace bricks and add more detail. Because prints just won't save an entire build.
EDIT: That also is a strange color scheme to use for something meant to resemble something in real life, I would have gone for a more practical wall color instead of purple.