It could be the unexpected or absurd situations. Maybe it shows characters in funny poses or with exaggerated expressions while being tortured in that setting.
Start with simple sketches of basic figures and then add details related to fashion. Practice different poses and expressions to make the characters look more stylish.
Pieck hentai manga might stand out due to its distinct art style, the way it handles character emotions, or perhaps the unique settings and scenarios it presents. These aspects could make it different from others in the same genre.