I'll try to remember to scan my images next time instead of using my phone to take pics.
The whole, being drawn on a 30.5 X 45.5 cm (12 X 18in) block of water color paper (in case I do decide to do an ink wash):
The most challenging thing so far? Loosening up. I started to get there toward the end of the week, I think, as seen by the suggestive lines of this top coral mass and the hinted-at fish from today's session.
Again, sorry for the image quality.