Beautiful woman, amazing hair.
But seriously: when does "older" or old age begin for you? At about 35????? (That´s roughly what she looks like to me in these fotos.) I guess she would be offended, and rightly so, if someone referred to her as "older"
On average, human beings these days live more than twice as long (as 35) in developed countries.
If you already call her an "older lady", what are we? I suspect most of us watching here could already be called really old men then.