Joystiq talks to Obsidian's Nathan Davis, discussing Mask of the Betrayer mostly by comparison to NWN2:
More information.Now this is a design choice, but another issue that some longterm Baldur's Gate/NWN fans had with Neverwinter Nights 2 was the fact that you moved away from attractive high quality 2D portraits for your characters and instead got a zoomed-in look at their 3D model's head instead. And honestly, it looked like crap.
Haha, well we've actually made it now so that players can customize their portraits with their own pictures and also increased the quality of the provided portraits for your NPC teammates. That's one of those things - we get a lot of feedback from the community and we respond to that.