After countless tweaks I believe I'm finally satisfied with this sketch but don't ask me tomorrow. I may change my mind again. The most difficult thing was to keep the focus on the main subject, the shipwreck. It was becoming more about those octopus tentacles. I hope by using those same tentacles to frame the shipwreck plus narrowing the format and bringing everything closer together I've solved that issue. I may run into trouble again when I add color so I will have to be mindful of that.