Monster Mediums - Colored Pencil

This is Charlotte. Charlotte is a professional opera singer. She is known worldwide for her beautiful voice. At first some people don't understand her. They think because of her sharp teeth and her pointy horns that she might be mean. Charlotte is anything but mean. She is beautiful, she is strong, she has talent. Charlotte collects butterflies and has them flying around her house. She grows beautiful flowers so that they have a peaceful place to live. Every night she performs onstage. She has sang for kings and queens.  She brings the whole audience to tears with her amazing voice.

Can you guess what medium Charlotte is?