Art is a material culture and culture is an expression of human needs - transmission of emotions, world vision, reflection. Each picture has a subjective character, the choice of an object and the way it is framed is a question of individual insight. The focus of a picture can be abstarct , a person or nature. Pictures always transfer emotions and impressions, tramsmit moods and often a hidden knowledge about a man and the world. Decorations in this category are a real art of cognition.