Pitch works well enough here, though I was hoping for a more throaty voice to go with your medium pitch here. Delivery is well paced, no real issues with your emotional input besides some tonal issues that don't gel too well with what the character should be. You're making this character sound too normal and almost light-hearted with how he sounds. The Occultist needs to have a calm reverence that befits his years of study, and this is something that becomes too apparent in your second lines where your tone makes the abject horror sound almost comical. Try to get a more knowledgeable tone here, and your delivery can work better with it; also the first demon voice sounds best with how creeping it sounds.