Comparing to the almost identical image below:
The curvature in the abdominal region has been reduced, the process that was used to achieve this has left the abdominal region to background border point at a sharper appearance than to the unmodified areas.
A more correct version would be:
An analysis of the modified area. Note that the modified area is a repetition of the adjacent area to the left side, as illustrated in the right side version of the comparision (The red lines show some areas' repeated sections):