30-min colour exercise 色彩練習

an everyday (not literally "every day") exercise on colours; finished within 30 minutes.
in this case details can be put aside while the main purpose is to study on the general relationship of colours, and to train a painter's colour sense.
it's somewhat like juggling with 3 balls, which are "value", "saturation" and "warmth/coolness". each one needs to be taken care of at the same time.
once a clear and harmonic relationship between the key elements has been built up, a painting can be considered finished, as what a teacher of mine used to tell us:
a painting should be a complete piece of work at any stage.

日常色彩練習；時間30分鐘以內。
不拘細節，只取整體色彩關係，目的是訓練色彩感覺。
這有點像三球雜耍，“明度”、“純度”和“冷暖” 三個球要同時顧及。
一旦各項要素之間建立起明確、和諧的關係，一幅畫就可看作是完成了，正如我的一位老師曾經常對我們說的：
一幅畫應該在任何一個步驟上都是一件完整的作品。

still life; acrylic on paper; 50cm x 70cm

靜物寫生；丙烯紙本；50cm x 70cm