Image galleries full of rich and compelling images are not only an excellent opportunity to drive pageviews, but they also present another great mechanism to increase exposure and distribution through social sharing channels.
For image galleries in Marfeel mobile sites, Pinterest is supported as the social sharing option.
The reason Marfeel only supports Pinterest is because statistically, it's the most popular platform to share public images found online, and is most likely to be used to share a publisher's photo in the gallery.