Ok, mee too thinking! If an artist does not cover his cheeks, forehead, and rest of face, i mean, just normal face, what acting we see there?!? kannu sivakkum(no problem becos its not covered even in prosthetics) and kannam thudikkum is only VK possible. So what difference are the the covered parts of face are missing to deliver, when we say prosthetics prohibits an artist to deliver real performance? Some can't deliver even with normal face, athu vera