This is a good start, I like the look of the game, its very minimal but the tree design is good and there's a nice simplicity to it. The game doesn't give the user any real choices, I would think about ways to engage the player with decisions about how to approach the level. The enemy is a bit unclear, I would use a new design or model to make it more obvious that it's an enemy/obstacle. It also seems odd that the scene ends on an empty platform. Since I can see the platform from the beginning of the game, there isn't a clear motivation to explore the scene.