This art is great! I agree with DustoTail that the story is a bit abrupt. I would add that the player character has only the basest reason to stay in this situation (the gun), and would, I imagine, be looking for a way to get out. Maybe pretending to drink the wine, attempting to overpower the banana and flee early on. We need more of a reason for them to go along. Maybe more choices would help. We're only two at the very end, and one of them has no bearing on the story. I think making this more of a conversation where you as the character get to try and talk the banana down would be more interesting and believable.
Hope that helps!