A suggestion for the Light Gallery: is missing in the top buttons, the button to execute the slideshow of the images. And with this, would also have to put the option of choosing the duration time of the display from one image to another. And to get better still, another option to insert an audio track, or even a Youtube video, but without the video display, just the audio of the Youtube video.

http://demo.joomlead.com/particles/index.php/particles/light-gallery