Beginning outdoor level

For my outdoor level, I have decided to use the image above as a reference image for the game. The game would start in a field facing a large mountain. The player would then progress to various checkpoints that lead closer to the mountain. During this level, I would like the player to feel interested and amused as they continue through the level. I would like to add various objects that would keep the players interest and persuade the player to each point in the level.