One of the most “overshot” family of values is what is often defined as "reflected lights.” These values, often observed most prominently within the realm of shadow, tend to be perceived as far, far lighter then they truly are (due to mechanisms of perception)—thus leading to decreased contrast between the more global, averaged light/shadow separation, resulting in a diminishment of overall perceived form/volume. Without using Photoshop, see if you can correctly identify the value (1-5 shown on the right) that most closely corresponds to the LIGHTEST value observed within the large, far right shadow region indicated by the arrow.
(I included a region map (in red) at the bottom to confirm the target location.)