hmmm.she is very cruel but when she become as vanessa she looks so beautiful but cruel also.

I don't get it?

There are some back-stories that say Ursula is actually Triton's sister, but due to her evil ways she was banished.

Since the original story by Andersen decrives not the appearance of the sea witch's, the The Little Mermaid authors have taken a lot of freedom in design, inspired by the singer and actor transvestite Divine. He was Harris Glenn Milstead an american actor, singer and drag queen of the last century. But originally the animators wanted to create as Ursula a simple fat mermaid, or maybe a race, a hybrid creature. That's all.

Ursula is a very dark and sinister villain. Aside from this, she has a large sense a humour