Basically, instead of excavating the whole thing it looks in both instances as if they simply cut her from the ground. Presumably her arm regenerated later to be as seen in the show in Terminal Dogma. I could also be wrong about the placement of the head in the image; admittedly it's the weakest part of the theory. The head could also be still buried and not in the amorphous shape I envision; another idea is that since her mask wouldn't have been applied yet, they didn't want to draw some original face and thus left the head very undefined. That's a pretty weak idea though.
Also I agree the upper right is clearly a building/cabin type structure. Wish more folks were speculating on the big red chair thing in the foreground on the lower right.