Yes we do miss you and I know that you are not done yet with your "S" drawing challenge. It was a treat seeing something like that in my opinion I am glad to see you back.
This one is pretty clever I must say you are working with just one color that you vary the saturation of and achieved something great. You clearly know how that works and used it to your advantage. Nicely done
I learned a lot about using a limited pallete in this one. The saturtion is def a part of being underwater. I have learned a lot with this series of drawings, and there will be one for each day of Septmber...with some delay due to missing nearly a week.
After that I'm not sure. I would like to take some time to do some larger/morecomplex/detailed works perhaps.