IIRC, you can import custom portraits into the game. Which resolution are they? I have a few ideas for my own custom portraits, but I'm not sure what image dimensions are going to be used.
One thing I want: All dialog options lead to at least one different visible reaction. I believe the OP stated something along these lines, I don't want multiple dialog options that lead to the exact same thing.
Story, characters, and gameplay good enough not to be a nuisance. I'd like to say just the story and characters, but there have been times where bad gameplay can bring an otherwise good story experience down greatly.