Professor McGonagall at a Convention

A woman dressed in a costume from the Harry Potter series, specifically representing Professor McGonagall. She is wearing a green and black robe with a white shirt underneath, and her hair is styled in loose waves. The woman is holding a wand in her right hand, which appears to be made of wood or another natural material. In the background, there are several other people dressed in various costumes, including a person in a blue wig and a person wearing a black robe with a white shirt underneath. The atmosphere suggests that this is a costume party or a convention for fans of the Harry Potter series.