Venture and Boundless have a brand new feature that allows you to create a "gallery of galleries" for organizing and presenting your different wedding portfolios.
To enable and start adding images to galleries navigate to Website > Content > Pages > and scroll to the bottom of the page and look for the section for "Galleries".
To enable simply be sure Show in Menu: is checked.
Next hit Add Gallery and then fill out the Gallery Title and choose the image you'd like to be the main gallery image, the best image dimensions for this image are 1190x300px.
Finally fill your gallery with all your images and hit Save!
Please note: the front-end example was shown on the Venture theme.