我的興趣是彈琴和畫畫(英文點講)

可考慮用以下其中一個講法：

My habits are playing the piano and painting.

I am interested in playing the piano and painting.

您好，我推薦您一個非常不錯的英語學習網站，里面有很多非常不錯的學習資源，您能從中得到不少幫助：

http://www.hkenglishstudy.info

祝您好運!

My hobbies are playing the piano and drawing.
I like playing the piano and drawing.

i am interested in playing piano and drawing.

I like drawing and playing pinao.

I like to play pinao and draw in my free time.

My hobbies are playing pinao and drawing.