First time I have seen the Frog's school marm looking good. Looks like she should stick to skirt suits and pointy toe 4" heels.
I'm not sure what she is concealing about her neckline, but she sure likes those nehru collars all buttoned up tight. Imho, open the collar spread the lapels, shorten and taper the jacket and take the skirt hemline to mid calf, and she'd look better, even with a high neckline and a lighter colored blouse. If there is something she wants to conceal there, do it with the blouse, not the jacket. Her hips will fill out the skirt enough to conceal the thin thighs, the length would cover all but lower legs which are in fine proportion, and the overall shape would work.
Melania looks lovely as always, albeit she is squinting or appears less than happy. No one, I don't care who you are, can smile for the camera all day long.