The color of the picture is a bit single, not too good to adjust tone. However, the author of the tutorial is very powerful, specifically to the photos with the grass and the sky, so that the canvas level and space sense increased, adjust the tone is much easier.
1, create a new size appropriate document, the foreground color is set to green grass, the background color is set to dark blue, and then execute: Filter > Render > Fiber.
2, implementation: Filters > Style > Hurricane.
3, the lawn has come out, select menu: Image > Rotate canvas > Clockwise rotate 90 degrees on it.
4, with the deepening tool to make the light and shade.
5, delete half of the grassland, new layer fill sky-blue, with brush to make clouds.