Speaking of the beard thing, I think it would be cool if it's handled by having a scene where Ian is in the bathroom and about to shave as he does every morning, then wonders if he should let it grow for a change (perhaps as part of him considering how a change in his image might effect his career or better suit the path he's taking). If the player indicates that Ian does want that, then it gives 3 options as to what he's aiming for - stubble, mustache, or beard. Something like that. Then if the player chooses to have him grow a mustache or a beard, it could show it slowly growing on his sprite over the course of a few chapters. That would be pretty cool. It would be pretty unsatisfying if the facial hair is automatically applied when we choose what we want for Ian.
Additionally it would be cool if it made mention of the stubble/mustache/beard in some scenes with other characters too - like how some female partner feels when Ian eats her out while he has a beard, or him saying he can taste her in his mustache, or even just simple comments on how they think he looks with said facial hair, or the fact that he's growing it. Little attentions to detail like this really add to the game, imo.