I had a lot of fun with this course - and I feel I also learned a lot!
Not only drawing eyes, but also drawing freehand.

I experimented drawing each eye on different paper with different pencils, too. Some were really difficult to work with - I won't use those paper/pencils again - that's an additional takeaway!
For example the Generic Eye is in a sketchbook with paper that's too thin. I couldn't get a better scan, notes on the next page look through :-(

 

I did the exercises in the order shown here - and I think one can see the progress I could make.
Although I'm rather satisfied with my results, I know there is room to improve. Any tips are the most welcome! 

 

 

My happy Eye: