How long have you made this work? （この作品を作るのにどれくらいの時間がかかりましたか？）
And I was asked many times, "How long have you made this work? " The answer is one part maded two weeks, the both parts one month. I think it speedy as by hand work, not as by machine work. I believe my work show the differece between hand work and machine work. I am particular about hand work.