Vanessa

Nice expression on model. Many technical issues: Her skin has RGB values over 200 and red 240-250 which really delivers a blasted look. Your file info indicates f5.6 at 70mm but this image is out of focus on her face. f11 would have put chest and face in focus. Artwork is needed to remove the double shadow under her strap and the shadow next to her left chin. Due to her hairstyle I would have lit her from the other side and that would have eliminated one shadow. The arms lead my eye out of the composition and her left arm is as big as her face. Bend her elbows and bring her hands into the composition. Toss a boa over any flesh that takes away from the main attraction which is the face and chest. I am including my crop and color adjust of your original image. Also, your eye catch-lights are at 8 o'clock but the main light was about 2 o,clock (the main and fill have such a low ratio that there is little modeling on her face and body. Show this to friends you trust for more advice.