ultimar, the chin-to-shoulder transition? I don't think it's bad
Alexandr Ignatyev, the whole bottom: everything is so blended together that it's hard to tell which body part is which. Instead of a delicate neck, what sticks out isn't even a shoulder, but a strange stump.
I find the work interesting and enjoyable; it doesn't cause any unpleasant sensations. Although the two halves are proportional, there's a visual imbalance due to the large amount of white on the left. Cropping options are possible View cropView cropView crop, but I'm not sure how the author will view these improvements, or whether they are even necessary
I couldn't immediately figure out why the neck is so thick