The color scheme of Seiler's works moves in a narrow spectrum between black, gray, white and brown tones; mixed variants of the material he predominantly uses: Bitumen. Wood is also frequently used. These simple and rather rough materials, usually used in street or house construction, contrast with the intimate, tender pictorial situations. Gender, relationships, self-determination and self-discovery are central themes in his work. Coming from Zimbabwe, a country where homosexual acts between men are punishable by law, Seiler's works also set an example for equal sexual orientation.