Your poses are good at expressing the gender. Masculine poses will usually have the arms pushed outwards by their larger torsos, and their legs will also angle outwards to make a more stable base for the larger upper body. The feminine form will typically do the opposite. Just keep those in mind. I think all that’s left is anatomy and exaggeration. Slightly lengthening the torso in men allows for larger, more exaggerated muscles. Unlike breasts, which are affected by gravity, pectorals will far more visually deform as the arms are extended and lifted above the head. The neck needs more muscle (usually) in men. Especially look into the trapezius and how it connects to the base of the skull. That makes up most of the neck silhouette. The sternocleidomastoid will create obvious, long bulges down the front of the neck in very muscled/skinny individuals. The pelvis in men is tilted back a bit more than in women, which is what gives feminine forms a more exaggerated S curve in their lower spine. Straightening it out and pushing out the pubis will help the rest of the torso fall in line with more masculine forms. There’s a lot more, but these are just the things I’ve noticed when comparing. As always, use references, but if you find yourself going off course, try an even more masculine reference to force yourself to think more about the various shapes found on the body. Good luck! Answer from Muffinskill on reddit.com