yes... as you can see the end of the horn is getting a big fat giving a odd look to it... also i really like the helmet and the technique you used for the face...
I would just change a bit the attachment of the nose (between the eyes) and make it more like it create orizontal skin bumps... now it look a bit too much like dots. and the lower lip part should be just a bit shaded on the corner of the mouth cuz now it look a bit to much like there is a sorta of plate of skin all connected there going from one cheek to the other.
Its lovely anyway. Super facial expression.. did you study the anatomy of the face for do it or you did it by heart?