Quote: "does anybody have any sugestions"
Stay away from the colored lights, unless they relate to something in the story, and then use them a little more sparingly. Entire blue rooms are strange.
The pictures are very common, like you just created large rooms and took snapshots. The don't convey any meaning or story, and are mostly too big and empty.
Please link your screenshots so we don't have to copy and paste the URL's.
For a first project, I have seen much worse. Look in the showcase at how others are creating smaller areas with more twists and turns and populating them with items. Look too at the lighting techniques, where portions of an area are lit and grow into darkness, pulling your attention to areas of interest.
Keep up the good work.