Bucket is that busy little square that looks like it's rendering things.  Smaller bucket size can help when running out of memory.

The sheen that you have on the skin seems to be material related. Look at the swimsuit, and how the sheen is not as visible. If it's the lights or render settings, the sheen would be a lot more visible on the swimsuit too.

Now, about which exact material setting would help... I don't know off the top of my head. Maybe our material room Demi-God, Bagginsbill will notice thread and help with specific settings :)

Hi, my namez: "NO, Bad Kitteh, NO!"  Whaz yurs?
BadKittehCo Store  BadKittehCo Freebies and product support