These two sisters simultaneously have a lot in common, and a lot to mark them out as unique individuals. Their noses are differently-sized, and they have markedly different eyes. Even their lips are different.
Despite all of that, we have no doubt that they're sisters because their face shape and skin tone is the same, and even though they've styled their hair a little differently, it's the same texture and color. They'd never pass for twins, but you'd still recognize them as sisters.