In conclusion, Duchamp's choice of materials exerts more emphasis on 'choice' which decides the status of an artwork, and his work contains significantly more sexual innuendos than Japar and Boonma's works. Japar and Boonma however are more similar in the rationale behind their choices of materials, as both their works usually have strong references to spirituality and religious symbolism, although they differ in Japar focusing more on symbolism and Boonma more on the Buddhist belief.