Jill looks good for her age but not especially young for her age. Despite her health issues, and penchant for squeezing into a size small, Julia looks the best for her age...just the luck of the genetic draw. I would also say Debbie looks younger than her age. Jill loves the sun a little too much....not as much as Ali K... Both are paying the price...but both make the best of themselves. Jill has absolutely upped her game in recent weeks in her look, as well as her demeanour on air. She definitely suits a wave in her hair to give it more body.
As I find myself more tolerant of a number of presenters, some of it has to be because I watch so much less often... But in Jill's case I think she has tweaked her presenting style. It remains to be seen whether she maintains it or not.