re: Clouds and craters on Titan
"The bright spots near the bottom represent a field of clouds near the south pole."
According to other reports, the clouds are specifically methane -- or something similar.
There appears to be a huuuuge crater to the north, with a prominent central peak. You can just make it out in the "cloud" composite, and it is quite apparent in the northern third of the color composite.
Of course it could be an optical illusion, too.