First, I'm sorry for my very poor English

I had some (probably) lucid dreams during this 2-3 month.
One of them occured after I practiced FILD (+-at 03:00 AM). About 20 secs after FILD I realized that I was dreaming. I woke up, opened my bedroom door and went to toilet.
I was very aware that I was dreaming but the environment seemed blur and dark.
In toilet I did some jumps to check my senses during dream. And after +-1/2 min in LD, I decided to wake up. I thought if it was true I was dreaming, after wake up I must be in my bed room not in the toilet.
Then I woke up in my bed, so I think it must be an LD

Another dream just happened last night.
I had this without do any induction technique.
I forget most of the detail but I still remember, that I was aware in that dream.
But the scene was not very real (strange location, unusual people in unusual place/scene, etc) but vivid enough.
(This unreal scene is one factor made me lazy to write this to my journal beside I was too lazy to write them last night)

My question is, how can I increase my vividity and reality in the dream?
Why I was aware enough in the dream, realized that I was dreaming, but sometimes unaware (in the dream) to some strange or unusual people/place/scene etc in the dream?

Thanks very much.