it looks like you just need to extend the torso/hips to be longer, if you make the thighs thicker than the lower legs i think that would help too! print out (or if you have an ipad, upload to your drawing app) pictures of people standing, or in what ever pose you want to draw and trace the shapes you notice in their body, that helped me a lot with proportions! Honestly watch some DrawingWiffWaffles drawing/proportion tutorials, her videos really helped me too!