I should consider if Sonja Zietlow is a public figure whose work includes nudity as part of her art. Artists like this do exist, but I need to be cautious. If she's not a public figure, then discussing her nude images without consent is unethical and possibly illegal. Also, the terms could be part of a misunderstanding or typo. Maybe "werk" instead of "work" in German, which means work or project. The user might be looking for information about her artistic projects.