What words can Baidu search for those pictures?

Body art photography is a photographic creation process in which photographers fully reveal the essential attributes of human beings by depicting nude portraits of human bodies and appreciating ugliness.

Body art photography can be a direct depiction of the human body, and then go deep into the essential state of human beings. We can also use various environments to reveal the complex relationship among human beings, nature and society. You can choose models of different genders and ages (including yourself, of course), and you can aestheticize or conceptualize the body style art or society through any shooting technique (including darkroom or post-computer processing) or realism, abstraction or deformation. Body art photography is generally classified as portrait photography in China.