This is an example of why I'd personally like Shinkawa's artwork be used for the facial appearance of the characters. Notice the two images of Naked Snake: in this drawing, as with Shinkawa's other illustrations of the Snakes, he has a very weathered and lean, wolfish look to him. Same goes for many of the characters (look at the corresponding image with young Revolver Ocelot, same thing, he looks A LOT harder in the artwork).
The detail for the clothing can be taken from the 3D models, though the detailed 360 views Shinkawa has in the Art books is, in my opinion, more than adequate to provide accurate reference for that, BUT, I'd like the facial models be based off his artwork.
Oh yeah, I'd also like to see the eye patch/bandanna removeable, or a separate Jack sculpt from Virtuous Mission. In the end I'll be more than happy if the Big Boss they make (if made) looks EXACTLY like the image of him in the teaser trailer, because that is one Bad-ass rendition of him.
And I hope HT does milk it for all it's worth, and I will buy EVERY MG figure even if it means not buying any other 1/6 items until the series is done!