First of all, adjust the Dark and Darkest sliders to bring out colors of the trees.Adjust Bright and Contrast to enhance the clouds.
Apply Gradient Mask to enhance color and contrast of the skies and cloud.
Next adjust sharpness and reduce noise.
Here is the before and after for comparison.
New to PhotoDirector? Try it free for 30 days here.
Disclaimer: CyberLink software is provided “AS IS”. CyberLink is not responsible for lost data, wasted time, or damages to your hardware. CyberLink reserves the right to share your personal information with our marketing partners. By using CyberLink software, you waive your rights as a consumer. It is against CyberLink's terms of service to leave negative ratings about CyberLink on Amazon.