Can gallery photos be expanded?

I am using the free version of Make because it came up as a fairly intuitive design template for those of us who don’t speak code. It has been pretty easy to use so far but there are a few things I can’t figure out. First, I am using the Gallery page builder to display my photos (I am a photographer) in each of my portfolios. Is there a way to allow the user to click on the photo and have it expand full size? It currently is so small that potential clients would have no way to really view the content of each of the photos. Here is my website:
https://www.sabrenarexingphotography.com