Mystical Lighting Ambiance 2.0 included a library of realistic and artistic lens effects:

Right-click your background layer > "Convert to Smart Object." Never run this plugin on a raw pixel layer.

AutoFX Mystical Lighting Ambiance 2.0 is a game-changing Photoshop plugin that can elevate your images to new heights of creativity and visual impact. With its stunning presets, customizable lighting effects, and advanced algorithms, this plugin is a must-have for photographers, graphic designers, and digital artists. Unlock the secrets of mystical lighting and transform your images into breathtaking works of art.

Look for the tool (usually a sun icon). Click directly behind the castle turret. You will see a wireframe ray preview extending outward. Drag the "Hotspot" radius to control how concentrated the source is.