#1 Always stick to a minimalist style for a smaller area. Addition of too many things would make the hallway look heavier and congested. Pop the space with an long upbeat runner and a wall-cloth hung on the parallel wall. Hand a free walling mirror on the front wall to add depth and aesthetics to the area.
#2. Let your guests enjoy a nice walk along the hallway while looking at your pictures. Place the pictures in neat frames and in whichever way in order to engage the passer-by.
#3 Use a single paint on the entire wall to create a color block effect. Bright colored walls with a white flooring would be just perfect.
#4 Show-off your collection of books in an exuberant manner. Create a bookshelf along the entire wall of the hallway to create an eye-catchy and unique feel to the area.