As Tweety (of Sylvester partnership fame) might have said, 'Oh doodness me!" Just look at the Material Girl's forearms. Almost no subcutaneous fat left, so every knotted blood vessel is visible. Along with some muscular bumps and lunar craters. Eeyew!
Paradoxically, the face has retained the sub-cut fat, keeping her lookin' purty young for a 50-something.
Not sure that those forearms mightn't do better in long sleeves.
Madonna, maybe time to start growing older, gracefully?