The mood of Wülfing's work ranges from serene to wistful to deeply melancholic. The subject is often mysterious, with narrative elements at whose meaning the observer can only guess—exactly as the artist intended. In her own words: "To people attuned to my compositions, they may well be mirrors of their own experiences. It is because of this that I have left the explanation of the drawings completely to the viewer, so that they are not bound by my interpretation of what each picture should be."