The first time you gain lucidity (which will happen soon enough if you want it to) you will most likely be blown away by learning that you're not awake, but are actually dreaming. Anyway, anything is possible in (lucid) dreams. Now when I say anything I don't mean whatever you can normally do plus flying and shooting pig-shaped fireballs from your ears. By anything I mean anything. The dream setting can be a complete void or a metropolis with millions of inhabitants. Maybe it has a 5th dimensions or maybe you have a 6th sense. As long as your mind (even just you subconscious) can make it up.

The point is that a lucid dream does not look a certain way by definition. By definition, it is a dream in which you know that you are dreaming. Things that nearly always result from this are your ability to consciously control yourself (or anything else within the dream for that matter. The dream is occuring within you, after all) and with that, a sudden clarity which is amazing to experience, especially the first couple of times.

Besides, if you become lucid and find you aren't pleased with the beauty of your surroundings for whatever reason, you can just change them as you please. How you do that is up to you. Anything can work, from voice commands to magic wands to standing on your head while eating your eyeballs.

Okay, so much for my lucid dreaming propaganda. I'm done now. As much as I seem to be promoting lucid dreaming here, though, everything I've said is true.