More Images on click - How can I make this clear?

Hey everyone!

I'm a photographer and using flatiron for my portfolio.
I'm currently trying to figure out how to make it clear that there are more photos of specific projects when people click on an image.
From analytics, I saw that most people do not visit the galleries which are linked to my photos on my landing page.

Can someone help me please? 🙂

Not seeing you site, not sure of exactly what is going on, or not going on. Looking at the Flatiron demo page, a hover effect, the word view or more or something like that is what you want I think:

https://flatiron-demo.squarespace.com/

I have the hover effect - however I'm not sure if people understand that this is not only a caption but will lead to another gallery with more photos. 
Same for mobile - there is no hover, only the images.