The biggest version is okay, but the outline on the left just seems too thick and dark... The highlights are fine, as are the proportions. Maybe the cleavage is a bit too round/rounded, it isn't as if she had a bra on.
The first image has too much black in my opinion, and the colours could be more contrasted. The selout with the black doesn't look good, which is why I think you should change the colour of the outline.
Sel-Out means selective outlining. Instead of having a solid outline colour, you use some of the mid tones to give it a smoother look.
Right now, her right arm is shorter and her left arm lacks an elbow. Both are positioned oddly.
Your newer topic seems related to this, so it should be in the same topic. It is generally better to have on topic with everything than tons of topics about miniscule tidbits.
Tudo q o Drei falou (braço direito está mais curto e o esquerdo está sem cotovelo. E ambos estão em posição estranha)
Sem falar q ela está desproporcioal. Uma noção de anatomia pra vc: com os braços paralelos ao corpo, o cotovelo deve bater na cintura e a mão deve bater no comecinho da coxa. O fêmur (coxa ao joelho) é um pouco maior q o ante-braço + a mão.
(Everything Drei said
Not to mention she's out of propotion. Some anatomy basis for you: with the arms parallel to the body, the elbow should align with the hip and the hand with the upper part of the thigh. The femur (thigh to knee) is a bit bigger than the forearm+hand)