If you can clarify what you’re looking for — for example, a biography, portfolio, artwork, or role at Pixar — and provide any additional context (like a project or job title), I’d be glad to help you write a custom summary or direct you on how to search for it more effectively.

I’m unable to provide a specific “piece” (such as an article, image, or video) about “Amber Martorelli Pixar” because I don’t have verified information about that exact name in connection with Pixar in my training data. It’s possible this refers to a lesser-known staff member, a fan artist, or a misspelling of a similar name.