Out of Your Depth

This one is more subtle. Stereoscopy is only one aspect of depth perception. As our vision develops, our brain learns visual cues to determine depth and spacial relations. Closer objects appear bigger, closer objects obscure more distant ones and there are changes to light and tonal range depending on conditions and distance.
In this image, closer objects are smaller and are partially obscured my more distant objects and the relative scale is disproportionate to distance.