There's no such thing as an awkward space in the post-gallery wall world, because you can arrange a collage of frames to skillfully attack the proportions of any sized wall.
one block wall -- one wallpaper wall opposite (maybe the wall of the chimney breast)
h[emma]gjord - Uppåt väggarna
Living room in blue tones with a picture wall (Gravity Home)
black and white photo gallery wall on the stair landing.
Create a simple but effective picture wall - Stil Inspiration