Whenever I draw from the chest or the pelvis I always have difficulty

Put a light sketch of one head that's too far and one that's too close, then draw one in the middle.

study refs

Study the anatomy of the neck, how muscles insert into the head and upper torso. Study the proportion of the head related to the other parts of the body. Lastly find a ref of a person stretching their neck in different directions and study the length of the neck compared to the head, the distance of the back of head from the upper torso, the distance of the chin from the upper torso, etc.

Drawing people from life or sketches will also help give an innate understanding of where the head should be positioned.

>>3088737

Meant to say photos instead of sketches here

>>3088509
Draw the head first
Plot where everything goes before you continue