These picture arrangement ideas may helpful!
Stairwell - ledge, frames, books, etc
oldfarmhouse: Loving everything about this entryway What do you.
Stripy stair runner and matching rug.
Crucial Trading's Fabulous colour Diamond in Laneve Wool
Staircase inspiration---Off Black by Farrow & Ball. Cumberland Terrace in Fort Greene, Brooklyn by Elizabeth Roberts/Ensemble Architecture
Painted stairs, stair runner with stair rods!