“the same eye appears darker in both; I wonder if that’s a twin thing.”
It’s called shading… light source is from the right, therefore left eye (essentially behind the nose bridge) gets a little less of it.
“the same eye appears darker in both; I wonder if that’s a twin thing.”
It’s called shading… light source is from the right, therefore left eye (essentially behind the nose bridge) gets a little less of it.