I'm sorry ahead of time for noting a very small and insignificant detail. Overall, your work here is great, you've got a clear use of form and a good range of values. However, only because I've experienced this before, your drawing seems to indicate a portion of the sitter's right clavicle (anatomical right) that has a steep angle to its center form. In your drawing, it appears, like my clavicle, to have been broken at some point and re-fused over time where one bone slightly overlaps the other. In an unbroken collarbone, it is one piece that handlebars across the chest. It appears, from observation of the image, that what you meant to indicate was a muscle separation between the chest and shoulder. It doesn't appear that this sitter has had the pleasure of snapping this particular part of his body, a part that's generally one of the strongest in everybody's but my own. Perhaps only lightening this very small and insignificant area might help to reduce the concavity, and thus "sharpness" of the angle. Regardless, thank you for sharing much better work than I could have done myself today; I'd trust your opinion over mine in resolving this, but I wanted to share that observation anyhow.

Hi, I'm looking for some feedback. I have a few years of drawing experience. The first drawing, labeled with a one, I tried to draw what was expected of the prompt, kept lines really simple. The second I drew along with Stan, sort of. The following drawings I opened up very loosely. Varying some media, I used fineliner, charcoal, ballpoint pen, and colored pencil. I'm not sure if I'm missing the point here.