Being chemically unassisted at the moment, I can see what appear to be two faces in the image. One is on the upper-right side and is covered by a an early Roman-style helmet witha nose guard. The other is the face of a woman, with the top of her head covered by the "R". Her hair is long and drapes over her shoulders.
If you are seeing something else, it's not there for me, so may be a matter of chemical assistance. Certainly not knocking chemical assistance. I remember staring for a long, long time at the covers of Left Hand Path and In The Nightside Eclipse after taking shrooms and finding much more detail and meaning than I ever noticed before. Around the same time i also decided that Wolves in the Throne Room had one the most intense logos I'd ever seen.