There is a good discussion on the BP website and at theoildrum.com.....they do plan to gradually close the valves, are still worried about ice because water could seep in under the device...and, yes, it does look like more of the finds are able to be seen.
My live link cam is offline ... where are you getting an image?
That is what they said they were going to to mate.
They were going to close the 4 vent valves on the top of the cap SLOWLY...
and ONLY after they established oil flow.
They don’t want to HAMMER anything, or cause the cap to be BLOWN OFF.
So SLOWLY, SLOWLY is the word.
It would have been very good to have some sort of narrative as the process was going forward.