Drawing Lesson One- Update
My original lines suffered because I was drawing with a 2B pencil, and I was keen to darken the lines so that they'd show up when scanned. This next scan shows a few smaller drawings, as well as another dog, with mistakes indicated, and those mistakes fixed below using a more natural pencil flow.
I now know that it really is important to keep physically comparing (holding up to, or using the tracing technique) to Blair's original work.
Unfortunetly my scanner tends to blur the image slightly.