I love the floor color, wall color and the white railings with the black iron spindles.
Bookshelves under the stairs
I have always been a true believer of old fashioned DIY, a couple of brackets and shelves can quickly add horizontal space to any room, utilising a space which is quite often wasted. Better still, if you wanted to hide such an area, why not buy a curtain pole and hang a drape of your choice? Possibly to match the rooms colour scheme, or for the more adventerous add some bold colour to uplift a room!