If they think that Veltro was scared to see Kraven's face, it is not so, this is what he actually observed, the real appearance of Kraven in hell, feeling like fear, terror and despair invaded his body.

Drogor is a demon of the biblical writings, represented as a relentless, cold and depiad demon, of horrible appearance in order to infuse the fear in the hearts of the sinful ones, outside the infernal world Drogor is inside the body of Emilio and thus is how Kraven is born and his true appearance was revealed.

Background Music: https://www.youtube.com/watch?v=ICSk8-pJkX8