Very damn cool Erik! You have the cheekbones nailed.
I agree with some earlier comments about your Pacino face feeling too long, but Im not sure I would go as far as Idanes paintover there. It feels a very long way from this:
Heres how I tend to nail a likeness:
Get yourself 3 types of reference that serve different purposes.
1) dimensional reference of the actors face.
Get an actual front ortho of the actor as perpendicular to camera with as little perspective distortion as possible. Do the same with a side. This is good for a front, but allow for youth:
2) Bonestructure reference.
Diffuse dramatic lighting reference for bonestructure. This helps you define the undulations in the surface of the face. Black and white works well here. eg ( copy url and paste into browser ) :
3) 'character' reference. i.e how the actor looks in character. The actual hairstyle/makeup/outfit worn for the character. e.g: http://www.posterandprintgallery.com...c/scarface.jpg
Hope this helps. I can tell this is gonna be awesome. The texure looks absolutely spot on to Pacino. You just gotta get the geo to match [img]/images/graemlins/smile.gif[/img]