The setting and models are great, but the storytelling and narrative design needs work
Sure. Your story seems somewhat incomplete and confusing. To improve, consider expanding the narrative, focusing on the narrative, plot and backstory. For examp - With each pizza slice eaten, paranormal activities unfold, leading to a quest to find all scattered slices to avoid being eaten by a pizza monster. The environment evolves with every found slice, becoming surreal and populated with paranormal phenomena. If all slices are consumed, the protagonist wakes as if from a dream, with an empty pizza box as a haunting reminder of the ordeal.Enhance the game by improving the visuals and audio, altering the protagonist's apartment, and introducing minor conflicts and obstacles. This will intensify the game, making it more engaging and thrilling, with a clear plotline and purpose.
This is just an example. The game will be the same but much more intense, it will have a purpose and a meaning with a plot. Such a game will be much more interesting to play and the gameplay will be exciting. I hope this helped, and I wish you success in your work :)