Nice work and a good effort but i guess the smiley looks pretty dark...Overall the image needs brightness....Shadows have been taken care of but the basic colour of the smiley could have also been brightened a bit. But a nice effort...Good luck...

nice reflection and shadow but may be better with a smaller nose and some lips nice work though

try decreasing the intensity of the shadow itself..increasing the specularity on the smiley...changing the mirror to a glass material and rethinking the facial expression..and this will be a good submission