You may need to adjust the opacity of the sky layer to get the perfect effect.The most popular options are Screen and Lighten, but experiment with different modes to see what looks best.
To do this, go to Image > Image Size and make sure the “Constrain Proportions” option is checked.
You can find plenty of free sky overlays online, or you can purchase them. Here’s a step-by-step guide on how to create a sky overlay in Photoshop: PRO TIP: Overlays are a great way to add interest and depth to your photos, but be careful not to overdo it! When using an overlay, make sure to adjust the transparency so that it doesn’t look too heavy-handed.
