Here's a couple of excellent drawings from Erin who is 11. She tackled the blind Beggar and the Roman Centurion, two of the hardest drawings in the book! Great work Erin! I think you did a fantastic job. For the Roman Centurion, if you wanted to improve it, I would suggest adding more volume to the back of his head and his right hand. What I'm most impressed with is all the detail in the armor that you articulated. All that detail is really difficult to keep track of and you did a really good job.
For the Beggar, if you wanted to add more structure, I would suggest making the legs a little longer. The left hand on the walking staff looks great! It's really hard to show how the hand is both behind and in front of the staff, but I think you pulled it off!