I'm from India, trying to create cartoon for YouTube that's why i made a character for my story but whet i apply motion to it its behave strange why this is happening specially with legs. motion that i applied is climbing a pool in g3 human male. how can i improve my character? Please help me anyone if there is a any solution.

here is the video link: https://youtu.be/CK0oDBLCJFo

Thank you in advance.