I always love playing with 3D programs, Vue, Carrara, starting some Blender... Never seem to have a subject matter that inspires me so when I read this months here this image popped into my head right off.... Sub is an import from a stock Carrara model. then textured in Vue. Rocks added at "impact site" some stock Vue corals and sea weeds. Little light touch for the underwater effect... Didn't do the whole caustics affect normally done because I made me feel like the area was too close to the surface, not REALLY deep like the whole subject matter suggests :) anyway, enjoy