The fact they are masks and you used the term "tribal" behavior is a connection I didn't think of before. I imagined the mask motif working as you mentioned before...a mask as a tool to hide the abuse suffered. The use of color in ceramics always throws me off in my work. The changes in color when a glaze is fired to maturity, layered, or mingling with others gives me fits. Your piece here seems to be sticking monochromatic...is that how you usually work?
I think the "self-gratification" route is best and if done with no inhibition really shines through to the viewer. But it's always been hard for me not see art as communication and feel I should try to convey a message of sorts.