When its activated, change its settings to the following:

• Brush size: 150px
• Hardness: 0%
• Mode: Normal
• Strength: 100%

The result:

Now, let’s change the water’s color. To do that, click on its layer and go to Image > Adjustments > Color Balance. Once open, use the following settings:

• Color Levels: -20, 0, +35
• Tone Balance: Midtones
• Preserve Luminosity: Checked

The resulting color should be similar to the following:

Again, let’s adjust its color, this time we will be dealing with the tones of the water’s shadows. Start by clicking on the layer again and go to Image > Adjustments > Color Balance. Once open, use the following settings:

• Color Levels: -45, +25, +18
• Tone Balance: Shadows
• Preserve Luminosity: Checked

The result:

Step 3: Create the Sky

Now, it’s time we added the sky. Open Sunny Field by frozenstocks and once open, activate the Rectangular Marquee Tool (M).