"The fabric was too shiny, so the pictures of me look awful."That's what I though of when I saw that picture of Michelle Obama in her highly praised red dress.
Photographed, she looks monstrous. I don't understand all the praise. So maybe she looked better in person. I don't think it's a fabric that photographs well, especially with all the flounce and details. She looks like a red and black Jackson Pollock canvas on which extra paint spilled.
There are other fabrics which can be problematic. I once ran into a photographer friend who was in a panic. Pictures from a wedding he had just photographed were shocking. The mother of the bride or groom wore an outfit from a fabric that became sheer when photographed with a flash. You could see more than she would ever want to show.
Jackie Kennedy knew how to choose elegant clothes that photographed well. What a difference...