Wow, a very cool and spooky tone. I really like the sound design, though I would agree with @Ollie1700 that the levels are a bit off.
The silhouetted character with the visceral particle effect looks so cool, and I love the frantic feeling from the camera angle and run animation.
I really like the shaders you used on the ground/sky that gave it that animated paper aesthetic. Super cool looking.
Is there more to the gameplay than just running towards the horizon and looking around at the scenery while listening to the narration? If not that's fine, does a great job of capturing the story of Grendel's flight regardless, just wanted to make sure I'm not missing anything.