In this tutorial we use a Luma Key to help sell the effect that the sun is behind the clouds. From there, it's color correction using secondaries as per usual ;) For a more believable glow, try adding a second SUN layer underneath the original sun layer and add a SMOOTH BLUR filter to it. Then, use a YUV Curve on the blurred sun to adjust it's glow intensity. Download a small section of the 4K RAW clip now from the above DOWNLOADS section :)
