To be honest, I never understood what's so elusive in Mona Lisa's smile. Am I the only one who just sees a regular smile? I can clearly see her smiling in the

To be honest, I never understood what's so elusive in Mona Lisa's smile. Am I the only one who just sees a regular smile? I can clearly see her smiling in the high frequency filtered image, even more than in the low freq ones, where she looks worried or embarrassed to me.