To achieve this look hang your pictures within a large square or rectangle.
This look is further unified by using the same black frame for all the images:
Keep it symmetrical for a nice clean look:
A very clever arrangement using symmetry in a rectangular layout:
See more posts in this series:
Frame Arrangement Pt. 1: MIDLINE
Frame Arrangement Pt. 2: GALLERY GRID
Frame Arrangement Pt. 3: BOTTOM LINE
