Here are a couple pictures of my crested gecko, Draco.
Those photos were taken during the day. This is what he looks like at night, for reference:
The night time pictures are obviously older, but you get the idea
. And yes, he lost his tail. When he was about six months old (he's over two years old now), I went on vacation and left him in the care of a family friend. He apparently escaped from his enclosure and although he didn't get too far, he got so scared that he dropped his tail.