If you want to embed Google Photos album, you need public shared link of album,
which you get directly in Google Photo and insert it into your post.
Plugin use PublicAlbum.org service to create gallery with carousel of Google Photo album.
There exist ways to link these to use:
1) Blank shared ink o album:
2) As shortcode
3) As shortcode with features
[google-photo https://goo.gl/photos/ApSvd4CU4UJVT9jd8 width=100% height=480 slideshow]
To using shortcode with additional features, you can use this known parameters:
width – set component width (number or percentable, width=100% or width=640)
height – set component height (number or percentable, height=50% or height=480)
slideshow – run slideshow after shown
delay – set delay between pictures during slideshow (delay=5 for five seconds delay)
shuffle – shuffle list of photos
No screenshots provided