Place what exactly? The jaw/chin? from what I can tell with my own limited experience, the jaw in the left one is a bit off center. Drawing a middle axis onto your sphere might help you better understand where the middle of the face would be. Also drawing the parts of the form that you do not see might help with that, especially when you are starting out. The lines that halve the sphere ends in a 90° angle to the outline of the sphere on the left for example. That however implies to the viewer, that there is actually a 90 degree angle there, rather than the round form continuing. If you look at the sphere here: https://study.com/cimages/multimages/16/sphere_cross_section7245140437775505592.jpg you can see how the cross contour lines wrap around the sphere and do not just end in a T shape when they hit the outline of the sphere. You also seem to skip the rough sketch/underdrawing for these heads. The line quality is a bit restless, because it consists of many short lines being joined together. To be perfectly honest, a lot of this implies that your grasp on 3D shapes, representing them on a 2D piece of paper and other basics is not that firm yet and I would suggest you practice that first alongside more interesting topics like drawing heads and portraits. I am not saying this to discourage you, but to save you a lot of the headache I cause myself by taking a similar approach to yours. A few years ago, I jumped in at the deeper end of the pool and basically tried to learn how to draw by taking the figure drawing class here on Proko, because it was way more interesting than the basics like drawing straight lines and geometric shapes. I had to find out the hard way however, that I lacked the basic concepts to really learn from the figure course. I learned something, sure, but certainly not as much as I could have and I did not understand why. What really helped me to get a better grasp on 3D shapes in the end, was doing the first lesson(s) on www.drawabox.com as well as their 250 Boxes challenge. (just be vary of the texture exercises in lesson 2) Maybe taking the drawing basics course here on Proko might be an even better alternative as it begins with a better understanding of 2D shapes, line quality and other basics rather than jumping directly into the more complex 3D shapes. So in summary: I would suggest that you get more practice on the basics like line quality, loose sketches/underdrawings and 3D shapes, while also practicing the more interesting topics that actually interest you (because doing only basics is boring.) Try to keep a 50:50 ration between drawings that are fun and practicing the fundamental skills. Otherwise you risk losing the joy in drawing.

Hello! I did a drawover for some of your heads, I hope it helps :) Overall, it seems like you have an understanding of the features and loomis dimensions, but placing them together as a 3D object is a bit trickier. Try sketching from the skull model in different angles, as this can help get a feeling for the structure underneath and the features, and also I would highly recommend checking out the Asaro head, which is a simplified model of the face planes.

More heads today, got more lenient with the time limit

Hi @moton, nice studies! I like how solid the heads feel! I'll do my best to help you further: - The vertical line on the circle, and the center line of the face should be at the same angle in the standard loomis head. - Knowing how to draw the box and the cylinder is a big help when drawing the loomis head, since it will help you with constructing it. If you'd like me to guide you in how to draw the box and the cylinder, draw three boxes from different angles from imagination. Then do the same with cylinders. Draw through the forms as if they were made out of glass. Then tag me (@Jesper Axelsson) and I'll try to take a look. I hope this helps :)

Wow do you work for an animation studio?