I am new to this forum but the lack of orange cheek patches makes me think it's a whiteface mixed with something else.
I have a whiteface pearl and it has more grey/charcoal feathers than yours.
The fact that the face is mostly a "bright white" instead of an off white makes me think it may be male not female.
Holy crap, the sun does that? I nearly bought a whiteface cinnamon pearl girl that looked very much like the main bird in the picture tielfan posted (except white obviously) and I absolutely fell in love.