There is no log in available to our demo site for obvious reasons but this page -http://fundamental.c5hub.com/portfolio... is very simple to set up. it is simply a core page list block with the 'Portfolio' custom template.

Each of the pages included in the page list have images assigned to them using the 'Thumbnail' attribute.

So as an example; you need to create a 'portfolio' page, then create multiple sub pages below for each of your 'projects'. On each of your 'project' pages makes sure you add the 'Thumbnail' attribute and upload a relevant image. On the 'portfolio' page add a page list and configure it to look at all pages beneath and ensure that 'Display Thumbnail Images' is set to yes. That is pretty much it.