Well first off despite it's faults this piece is amazing and that's because you've nailed the colouring, shading, lighting and composition of the image, you're obviously a master at these skills because they couldn't be more perfect in my opinionBUTyes, the but...you're right about her anatomy, the head for starters is way too big for the rest of her body, and Turian legs bend backwards which would be really awkward to draw but those are the thing's that's wrong with this image, just thought I'd let you know