The upward angle of the frames should match the angle of the stair in a staircase display, again keep larger frames as the focal point and use smaller ones as an accent - note how the corners of the smaller frames are placed in relation to the dotted line...
floor to ceiling gallery wall on a stair landing
House of Noise... I mean boys.: Gallery Wall - It's done!
Great template for taking the guess work out of hanging photos. Even comes with picture frames.
Creative Wall Displays: get those photos off your hard drive
LOVE LOVE LOVE!! Black & white pictures in white frames with white mats. This is perfect!
How to Display Framed Photographs On a Wall
Stair Photo Wall Layout. Similar to our's, but I like the collage frames better here.
Great way to display old photos on a family tree wall