maybe tip the front knee and sword hand toward the camera first, then shrink the back leg a bit so the jump reads in perspective before adding more background
Dynamic anime girl looks stiff. The character pose could be more dynamic.
Artist's notes:
I'm trying to make a gesture that she is jumping quickly and pulling out a flaming sword but there's no perspective in the character pose. Background ideas too would add to the dynamic too. To sketch this anime i used colored pencil and online editing tool.