This is Fragility Diffraction. 

Four women who look appear "normal" are in reality are not.    They  are facing  or faced significant turmoil. All are on the verge of a mental health crisis.   This painting uses wave optic / light effects; Diffraction and Resolving Power.  I am using these terms poetically as one truly can not see the edges around an object visually or the vitality of another soul.