The upward angle of the frames should match the angle of the stairs in a staircase display. 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
When making a collage going up a staircase keep in mind to mimic the staircase lines in your collage. Also make sure to measure on every second or third step the distance from the collage to the stair to make sure it has the same distance consistently.
I really like the idea of storage space to hide small kitchen appliances and keep counter space clear. I would like to utilize this idea in my future home kitchen but with grey cabinets and green marble counter tops.