These are a few examples showing incorrect usage of the framing devices. 
 Don’t rotate the framing devices
Don’t rotate the framing devices
 
 Avoid awkward crops with no focal point
Avoid awkward crops with no focal point
 
 Make sure there is sufficient contrast between images
Make sure there is sufficient contrast between images
  
 Don’t use too many frames, especially in smaller placements
Don’t use too many frames, especially in smaller placements
 
 Avoid images that are busy with no focal point
Avoid images that are busy with no focal point
 
 Don’t use different shaped framing devices
Don’t use different shaped framing devices