The pause screen in general needs a big overhaul, though that may be outside the scope of the demo. For episode 1 I'll likely turn it in to a traditional menu with Inventory, Options, Main Menu and Quit buttons rather than the bolted together inventory/quit screen it is now. Having LMB be a text advance/interact "button" is a highly requested feature too, I'll try and add that to the last demo fix I do in a few days. Changing the Master default volume is easy enough, though I'll probably default it to 0.75, since it's largely not been a complaint.
No plans to add being able to see "yourself" currently outside of cast shadows, apologies.
Thank you very much for the feedback, it's greatly appreciated!