Yup, there was some more goo to clean up where the engine once rest... the thick gooey kind. Lower bilge goo has had soap introduced, causing it to settle in to a muddy clay like substance. The stuff under the engine stringers (where the dust is in the top picture) was plain old engine goop...
After: A wee bit cleaner... the hose in question goes to my sink. I plugged it even though its above the water line (we are still floating... grin.) as its disconcerting to look over and see a water column!
Another two hours... she almost does not smell like a boat any more... nah! Grin.