Dreamer, you already have 3 owls turned to the left.
The top one is faded -as it should be- when showing you the way. It has a small arrow at the base, showing you the way.
The large one in the middle, which is the most obvious to bring you closer, is hinting you about a side shaft.
The third one, is only showing the head, as the body is buried underground.
In my opinion, you are There already.
Just take more pictures around that monument...frontand back and sideways. Also, clean some of that obstructing vegetation.
Nice find, realy-realy. Have fun.

check the contours against your original picture.
you can even see the tool marks in the ears area. The horns are sharp and give you an "M" looking shape.
M is for the Owl.
