immediately after significant weight training or other exercise?
I don't think so phil...
this is her after a workout in 2008.
Yes, Flashy- and the arms you see in the OP photo are the SAME... they have simply been been photographed with a flash.
the picture shown in the OP is very recent...and you will notice, she did not just finish as you incorrectly pointed out...she is dressed in jeans, is wearing several pieces of jewelry, has makeup on, and a nice shirt and her hair is not messy.
My- that's an awful lot of unsupported hogwash.
I am not guessing, Flashy- Human anatomy -proportion, etc is my area of particular expertise.
The fact that she was working out with 15 minutes of this photo is not a guess... the condition of her veins is NOT something seen due to loss of muscle mass from under eating.
That particular appearance, of highly defined forearm muscles in which veining is standing uniformly proud can ONLY occur as the result of vigorous, high tension exercise.
For example, Rock Climbing will make your forearms look like this.
Your observations of hair and dress are immaterial.
The anatomy is unequivocal.
And the two pictures show almost exactly the same form, simply lit differently.
She may be underweight, but she is not skeletal. Those are muscles.
The fad among the celebrity women these days is weight and resistance training that relies on very low weights and low levels of resistance.
So that they do not end up with large, matronly upper arms.
She is not showing nearly enough BONE to be seriously underweight.
Sorry- as someone who has dissected cadavers and teaches human anatomy to artists, that's a professional opinion.
The only thing revealed by the OP picture is that her face is aging, she is working out frequently and strenuously, and that Flash photography is unflattering.