Zita's Profile

Diamonds and stripes are always a safe pattern that will add character to the walls and space. A bit of sheen can help to reflect light into the space and again add character to the hall. A texture is also an exciting trick. Since the bikes are a fixture there and it's a well used hallway then you should stick to a finish that is durable. That might rule out wallpaper or a flat paint job. A nice finish is a work of art so you would not need to hang anything over it!
You should contact Alison from Causerlai.com for some ideas. I wish I could post a couple of pics here of what they did for me!