Hosting photo-stream (jekyll-based) on GitHub Pages

Is it possible to host this (jekyll-based) photo-stream on GitHub pages?
link to the example project here

I am trying to host this photo-stream project on GitHub pages.

The files appear fine on localhost, but when pushing to GitHub it looks like the file structure is broken,

Here is a link to my file structure for reference:

Is anyone able to host this photo-stream on GitHub Pages?

I’m wondering if I made a mistake or it’s just not possible.