This felt like a solid pitch to present the idea of the world you started to build. We can tell that a lot of thought has been put into each character, each moment, the timeline of it all, it's so impressive to see that it happened in such a short time too! I love the two brother deamons so soooo much! I could imagine them influencing the world in so many ways!
I'm biased because I adore Mike Mignola and I could feel that influence seep through in great ways here : the bold shadows that make use focus on specific details in the art. The limited color palette, the thick and angular lines. I think that choice was perfect because it totally fits the mood and you've made it your own in a good way. Maybe it's because I'm an illustrator, but I can see how long all this could take. That's massive! Good job!