Hi Ayunie...A few proportion tweaks...https://www.filesanywhere.com/fs/v.aspx?v=8b6f628958616e77b06e
In short...Your original pose drawing (left) is proportionally correct but you've elongated the arms when adding the hands (middle drawing). The hand plus forearm should be just slightly longer than your upper arm (try touching your left shoulder with your left hand). Also the feet are very vertical.
Okay, will work on refining it. Thank you :)