been looking at all you pics. So not let me add some CC. You got the anime head pretty much down, but it looks like the body is a difficult place thing to draw. This is completely noormal since it is a very complicated thing to draw. If you want my advice, you should start studing medical books on the human body and muscle diagrams. It worked for me. But a well enough pic itself. Great effort.
*pinches Sakura's cheeks*
You do great work!