To me this photo looks too dark overall. The black background is good but I feel the tree itself is too black. In post processing, using levels could fix this. Also it's quite soft. A quick application of Unsharp Mask could easily give it a little more definition.
I think the composition is a little dull, as the photo is very flat and doesn't appear to have any depth at all. Taking the photo during the day and getting a blurred background would help this, so would choosing a different angle that's not so front-on, but then of course the face wouldn't be visable.
It actually took me a long time to find the face, and I'm still not entirely sure that what I see is what you intended the face to be. I would encourage you to put info into the Photographer's Comments box in the future. Maybe a closer crop on the face would make it easier to spot, as some voters only spend a few seconds on each photo and may have voted you low when they couldnt find the face.
That is so *awesome*! Looks like the face is actually looking at you, just like those paintings with the eyes that follow you around the room. Brilliant shot, 10
This is a great face discovery for sure. The lighting is very nice. The whole image seems a bit down to me though, I wish it were lightened half a zone.