Hey man, here's some crits: From the front view: mouth wider nose less blobby (define the nostrils more) Make sure you have the eyes wrapping around (the eyeball is a sphere even on a monster like this, so the eyes are def. not wrapping around a sphere properly atm). pull the eyes down slightly, and pull the mouth and nose…
There are a lot of anatomical problems in the face...such as: recessed forehead smashed in nose very slanted eyes mouth seems a little small (maybe) cheek bones cave in too much I would suggest working more off reference if you aren't to get a lot of these things right.