I looks like you have all of the important muscles in your drawings, now it's just a matter of figuring out where they connect and how they change when flexed. It's a truly wonderful challenge to take on :) What helps me is to do tracings before I dive into an anatomical study. I find that I ask more questions when trying to work out what goes where beforehand than when I am in the midst of a drawing. You could print out the images and use tracing paper or do the tracings digitally. It also helps me to label the muscles. That's just what works for me, but it could work for you too! I also try to find references to have available, like Richer's Artistic Anatomy and the free app 3D Anatomy for Artists, which is a great way to learn the origins and insertions. I included my tracing of the images you included. Hope that helps!

Very nice work!

The brachialis is mainly visible on the outside of the arm since there are arteries, veins, etc that cover it on the inside of the arm. It creates an oval shape when flexed and is visibile on your drawing #3 between the triceps and the biceps. Hope that helps!

Looks awesome, @Holly Laing! Careful construction and accurate anatomy. Great work!! One suggestion I'd make (which doesn't concern anatomy directly) would be to avoid using a hasty zig-zaggy pattern when shading with a pencil-like tool, since it can create some "noise" that kind of breaks the realistic design which I believe you were going for. Instead, what I'd recommend would be to try to work with hatching and cross-hatching (something like what @David Finch shows in this video: How to Cross Hatch for Comics - David Finch) or, alternatively, to use a more "painterly" approach and have your shading rely just on broad tone marks (I'm attaching a quick paint-over). Hope this helps!

Hi Daniela, There is a couple of things I see in your arm drawing that I think you could work on. To begin with, the arm has no gesture, it's very straight and stiff. Your anatomy and the way you are thinking about the flex and relaxed part of the muscles is what is contributing to the stiffness. It's easier to show then explain, so I did a quick sketch to show you what I mean. I hope this helps :)

Hi @Tsotne Shonia, nice studies! Your tracings of the anatomy look pretty accurate💪 - I think I would give you the same advice I gave you on the foot bones assignment: to practice drawing from imagination. Drawing from imagination reveals what you don't know and helps you get to know the anatomy even better. In some of these I'm lacking a sence of a bone beneath, and the muscles being layered on top. In drawing 1, 2 and 5 I feel like we're lacking some of the arm's volume; maybe because the unvisibile anatomy hasn't been clearly considered. I like to treat my anatomy studies, kinda like écorché sculptures; you build from skeleton up to the surface. - I think the drawings would look even more appealing if you balance the round forms with some hard planes. Try to be a bit more boxy in you mass conceptions. In image 6 for example, you have a wonderful opportuniy to draw an almost box like biceps. - Try to consider the gesture more when adding the structure and anatomy. If you study this drawing by Michelangeo https://i.pinimg.com/originals/21/86/5f/21865fe4ea3811d6cdad9a961d5d5ce3.jpg, you might notice how every single line is contributing to the gesture. It might help to think about a river flowing through the body; the forms are like rocks that the water flow across, around, smashes into, splashes over and the lines you draw is the water interacting with them. One of the difficulties with figure drawing is to keep on adding to the gesture, while adding the forms and details, and this river analogy might help with that. Hope this helps :) Keep up the good work!

Really nice!

Hi @David Gutmann, nice drawings! Good gesture and shading, I can clearly feel the forms. - I would do some deeper studying of the anatomy to make sure you know all the muscles from this lesson and their attachment points. In drawing 2, I'm unsure whether you're aware of the biceps's insertion point at the radius and the presence of the brachialis, since they don't seem indicated (though I'm seeing a light line that might be part of the brachialis). Maybe you were, but choose to leave it out for a focus on light- and shadow-shapes? You can shade of course, though for your anatomy studies I would recommend that you lightly indicate, or at least in the lay-in, find the muscles and bones that lie deep as well. In image 3 you've indicated the coracobrachialis, though I'm unsure whether you know where it's heading for the coracoid process. In drawing 4 you seem to have grouped the biceps with the brachialis into a single cylinder. Hope this helps :) Keep up the good work!

Nice work! Keep going

Looking reaaly good.

For you last drawing, the gray part seems to be the brachialis, not biceps brachii. It looks like you can identify your muscles well though!

Well done. For your drawing of the woman, the deltoid and biceps brachii lines should be touching, as there's nothing in between them at that area. Your drawings look structural and has volume though so keep up the good work!