Good choice of sound. Everything from the phones to the nature sounds was unnerving.  I thought that adding red to the color palette was interesting (sky is reddish). Makes it scarier. Movement could be a littttle faster. Just a tad, but generally the game injected as much tension as it could. I love how it makes you paranoid since SIrenhead blends in with the environment. Gameplay was simple like Slender games. But I love the role of sound in the game play. You have to listen for Sirenhead, for the car AND for the phones. And it makes you on your guard all the more. Every element was put together to create a scary game. Keep it up, man.