The arrangement of art, photographs and other objects is in itself an art form. I love grouping or collage style hanging. In my home we have a “glory” wall, which has a mixture of art and photo’s, all hung together. There is though, just as much need for symmetrical displays, series, shelf displays, floor leans etc to create a balanced and pleasing display.
Neat and geometric v collaged and eclectic, it’s a personal choice. For a grid approach having identical (or almost identical) frames is important. What’s actually inside the frames can vary wildly; it’s the frames that keep it sharp and together, providing a clean organised appearance. The only down side to a grid is the precision hanging.
The collaged or mosaic hanging is about expressing who you are – critical to this is sense of balance of composition and proportion which is completely different to the grid approach. It’s best to arrange the art/photographs objects on the floor first to get a sense of what hangs well together. The overall effect is free spirited and of a collection of memories. It’s a great way to make a statement and to add something personal to your space. I personally think it works best when you have different mediums hung together – photo’s, oil paintings, prints, objects etc (see below image)
Vertical or horizontal? This will probably be dictated by the need to create height or to visually widen or elongate a space. It can also help create rhythm and balance the furniture in the room. Often though vertical arrangements appear formal and dramatic while horizontal hangings feel more casual – but it all depends on what you are hanging.
Maybe you don’t need to hang it. Leaning artwork against the wall allows you to move objects around whenever you want. I really like the slim picture shelves that allow works to lean against a wall and be constantly changed and moved. (See below image on right side)
Image source here