This is up to opinion, but I feel like black is more expressive. Black is often used in art to show sadness or gloom. Using white just doesn't have the same effect, however it can be symbolic and beautiful, like in a wedding dress. Black shows more depth and can represent evil, mystery, depression, or uncertainty. It would be a better choice to use if you want to express these types of feelings. :D
For this you can choose an artist like; Barbara Kurger. you can say why do you like her work and also how she made her work. nd some personal information about her like date of birth where she was born.