And dont use the underwater white balance either. That isn't a customizable setting. Use either 1 or 2 like you're on, and just press menu when pointed at something white.
Heres a couple pics i took last night. One with an 810 and the other with a TG-4. They are in a different league when it comes to qulity close up pics, dont expct the 850 to compare to the TG-4
810 (Super macro)
TG-4 (Microscope)
