Look at Michelangelo or even Mozart and Bach. Which of them did not go through a basic craftsman's training? It was only then that they could develop their own artistic styles.
看看米開朗基羅、梵谷，甚至莫札特、巴哈，誰不是經過工匠般的基礎訓練，才發展出各自藝術風格。