NO NO NO NO NO dont listen to them KEEP it the way it is...
dropping it will only open space and a simple shadow will not just fill it in..
AND most important... LOOOOK at the face of the mask his eyes are looking up. AT what i dont know. and what ever it is hes looking at thats to our imagination.. looks spooky..
by dropping it , it loses value.. and you will have to add something..
i don't see the eyes as looking up at all, i think if it was more towards the bottom (like chase said) it would be ill, i like his idea of having the whole shadow in the frame.
i Love everything about it, its amazing and mask art is possibly the craziest art out there, not to add sick photography with it just adds to your work, great job martin, keep it up