It's really interesting how good some of the results are, but the styles seem to be completely mixed up. Just looking up Claude Monet, and there isn't anything

It's really interesting how good some of the results are, but the styles seem to be completely mixed up. Just looking up Claude Monet, and there isn't anything impressionist. Leonardo da Vinci, on the other hand, give results that rather look like British impressionist paintings. I've seen paintings in the style of Donato Giancola that really looked like his style, but in the examples of this site none of the result do. Maybe there needs to be some adjustments to the prompts?