ehhh...sorta makes sense and sorta doesn't. the bodies jiggilng makes sense cuz thats called fat. if u see any person walking naked of course they'd sorta have flesh jiggle.
secondly mikasa doesn't need to be lectured, she's too badass for that. and the sun glistening on her face/hair was weak, u can't jab at someone for good art and animation
thirdly she doesn't have big anime eyes, they're smaller than the typically bigger ones and in comparison to cartoons, these eyes look just fine and not that different.