photo and video website

I want to reform my client’s site ( by simplifying it on the one hand (several pieces of information are useless), but above all by completely rethinking the “event” part. This is an area that shows past evenings / shows and the photos and video that may have been taken.
If I submit this request to you, it is because I realized that when a template pleases me and meets my expectations, I realize, once purchased, that the page which seemed to me to correspond to my expectations (in grouping photos and videos, as in this example is built by creating articles or at least, not as easily as I thought.
In short, probably a little confused, I sent you the link to what exists so that you can better understand my expectations.
I hope for an enriching feedback from you.