E might not be suitable for this lol
Really unique though, the sound design really sold it for me, captured the uneasiness perfectly. Dialogue was entirely unpredictable, and really changed the perspective of the narrative, again a great choice. I think the only improvements I can suggest have to do with visuals. Particularly the use of white, in film and animation white usually signifies emptiness, but you have a lot going on in the scene so it contrasts and feels as though it doesn't fit. While this may add to the unsettling nature of the piece, the same could be done with greater effect by using grey, beige, teal etc... Any dull colour would work as a good background for the content here. The sketchy style is fine altough more frames would help it look less jittery.
All in all though you have something very interesting going on here, keep it up :)