I think everyone thinks about making a gallery wall somewhere in their home. Often times it never happens because people get overwhelmed with the style they want and how to order the frames. Here are 3 of my favorites as examples that it really needn’t be that difficult:
Just do simple white frames with mattes in different sizes = done.
Or add in some art pieces with a few different toned frames (black, white, gold , silver). These days its much more interesting to not have everything matchy matchy.
Lastly just put up a few small shelves and lean your photos on the wall. No commitment to holes in the wall. Then you can trade out art and pictures as you like over time. I always find great frames at TJ Maxx, Crate and Barrel and West Elm for a few ideas.