What is beauty?

My husband thinks I am his benchmark! Been called many things but not a benchmark for beauty. Shopping for clothes is an interesting psychological experience or perhaps experiment. On a Thursday you are beautiful and look fantastic and on a Friday you have put on 3 kgs and think you are a Michelin man. What happens?
I also succumbed to a grey jumper as I live in Europe and it is the continent of black, grey and black.

I took this picture of this man who is beautiful, look at his hand and aura of grace.