The nose doesn't look right enough for him.
Look at the way the bridge of the nose/ that area, comes out of the face.
The actual nose part almost is separate from the bridge (almost like a pyramid poking out). The bridge area is also a lot wider than what you have now, and overall the whole nose area is a lot softer. Yours looks a bit pinched and sharp in some areas.
On the side profile, the apex of the nose's curve is also lower than what you currently have.
The inner areas go in a lot deeper than they should go. They also don't really connect to the head all that well, but it's not too bothersome. (You pointed out the problems on the ears already so I won't make a huge deal about it)
The eyes are off, and I can't really put my finger on why, but I think some other anons can help out there.
The eye sockets might be too far into the skull maybe.
Hopefully it helps out a bit, and everything turns out well enough.