very well done. but remember when you first draw/sketch the gesture to exagurate it abit more than you think is necessary. Because when you start putting in the details, it will stiffen up. I think stan said this himself. I made this mistake when i started drawing from models and my friend told me that because I draw from models and focusing on the anatomy it looks stiff I forgot the gesture. and the line of action is soo straight. other than that i realy don't know what else to add. keep at it and good luck.