Our model today was Victoria Swan. We had a lot of excellent drawings. I was most encouraged by how many of your spent time drawing her portrait.
One thing I mentioned during critique that might be worth repeating is that we need to be careful the contour lines of our drawings don't contradict our light logic. In some of your drawings I saw contour lines get thicker and darker around highlights rather than getting thinner and lighter.
The quality of your contour lines can be a very effective way to suggest or enhance the source of light in a scene. Line quality can also contradict highlight/shadow relationships and flatten your drawing out if you are not paying attention.