I'm thanking you to thank you!

Thanks so much! Fluidity in my characters is something that I still struggle with greatly.

There are two things I try to keep in mind. One is the character's personalities and emotions at the current moment. The second is long continuous strokes. When it comes to proportions it's highly dependent on what you're trying to accomplish for instance with this I'm not concerned about proportions being exaggerated because these are in motion poses and I want that energy to carry through.

Other than that it's study and application all the way. Some of my favorite artists are Sushi-O and Yoh Yoshinari. Hope this helps!