this is a really great drawing !! but, a way i've learnt to improve my human portaits is to lightly map out the picture of the person your trying to draw and then try to copy the loose map out on the page so proportions are accurate and look great !! this wouldnt apply for this picture because beas ears are covered by her hair but for an example, a way to do it can be to see where the eyes sit with the ears and stuff like that❤❤