Working quickly and loosely to try to get the whole image laid in as soon as possible. Very trial and error at this point, looking for the range of color and treatment for the light and waves and debris on the bottom. I think I may be able to selectively focus a few key places, which may be sufficient to establish a balance between the illusion and the paint. I really need to move on to the whole upper section; it is essential to me that the image seems whole and consistent.
Below is a detail, to give a better idea of the paint and marks which I’m using.