Use motion blur to add some motion to the birds. I will explain the process on one bird and you can repeat the same steps on the rest. Duplicate the layer with the bird and place it under the bird. Now go to Filter > Blur > Motion Blur. Set the Distance to around 15 px (this depends on the size of the image you’re working with) and change the angle so that it fits the angle of the bird. Then press OK. Repeat the process with the rest of the birds.
Step 19 - Adding the Mist
If you want to create mystic atmosphere in your manipulation adding mist adds a nice effect. Download some mist brushes (I used these) and upload them to Photoshop.
Create a new layer on the top of your layers and name it MIST. Select the Brush Tool (B) and select one of the mist brushes you installed. Now pick a bright color from the sky and paint some mist. I recommend that you to play around with different colors and opacities to get a more realistic result. Avoid using pure white because it’s too bright and not very common in nature. For example, if you see white flowers they’re not actually white but instead light yellow. The same thing goes about using black. Try to use darker tones of other colors. It’s a lot more realistic.
Step 20 - Global Light
All of the elements are now placed in the scene. Now the focus is on setting the global light source and color adjustments. First, add a lens flare to the center of the image to create the main light source. To do this, add a new layer on the top of the layers and name it LENS FLARE. Select the Gradient Tool (G) and fill the layer with solid black color.
Now go to Filter > Render > Lens Flare and choose the flare you like. I used 105mm Prime. Press OK. To make the flare more realistic, blur it a bit. Go to Filter > Blur > Gaussian Blur, then set the value Diameter to about 1 px. Press OK. To blend the layer nicely, change the Blending Mode to Screen.
Step 21 - More Lights and Shadows
There should be more light and shadow on the objects in the foreground and also on the ground. To do this, add a new layer on top of your layers and fill it with solid #808080 grey color. Change the Blending Mode to Overlay.
Select the Brush Tool (B) and choose a soft round brush. Pick a white color and lower the opacity, then paint over the areas that should have more highlights. Next pick a black color and paint over the shadows.
Step 22 - Better Light Source
The light source needs to be more visible. Add a new layer on top of your layers and fill it with solid #808080 grey color. Now go to Filter > Render > Lightning Effects, and set it with the settings shown below. Change the Blending Mode of this layer to Overlay.
Step 23 - First Global Adjustments
In this step we will start with first global adjustments and continue on in the next step. First, increase the contrast of the whole manipulation. Add a new adjustment layer Gradient Map on top of the layers. Select Black, White gradient and press OK. Set the Blending Mode of this layer to Overlay. Now add a new adjustment layer Hue/Saturation and set the value Saturation to -20.