/ic/ - Artwork/Critique

>>2085335
>>2085344

Short version: I don't think you're ready for this. Study perspective, and analyze your subject more. There are a lot of subtle things you must learn to pick up on before you can transform the three major masses into boxes.

Long version:
1 is one hell of a pose. Because of foreshortening, I advise staying away from pictures like this one and number 3. For now.
You must look for the angles of his landmarks, specifically the pit of his neck and the sternum, and the imaginary wrapping lines around his torso. These will give you a clue about the perspective of the torso. Then, you must look under his torso for the pelvis, which unlike your drawing, is not actually that much below the horizon; it raises on his left to support his weight. This is very important to keep in mind.

2 is a very simple pose. Again, you look for simple landmarks and you find the lines you need to construct the box. Now, the torso might look like it's tilting to the left, but in reality it's an illusion of the clavicle and scapulas, which can pivot individually across the torso. His arms go left, but his ribcage is facing right!
His pelvis is much easier to see. It tilts in the same direction of the torso, unlike your drawing, and rises on his right, which is the weight-supporting leg.

3 is legitimately hard. There's a very subtle tilt in both the ribcage and pelvis and I'm actually unsure I got it right myself. I again looked at the landmarks, but this time I paid special attention to that little triangle above her glutes and the spine. This gives me a subtle twist, as well.

4 was much simpler. There's a twist in his body. The box of the ribcage pretty much faces the objective directly, while the pelvis has a subtle tilt towards us. You might be induced into error by the upper part of the torso, but again, that's the clavicles and scapulas working individually. Pay more attention to his back muscles, which quite obviously show us the ribcage from the profile.