I saw the above image in the home of designer Barbara Gongini, saw that picture of her bedroom (?) and stopped to stare. There are actually two ideas going on here.
1) Take a large canvas and just brush paint unevenly over it using one principle color (red, anyone?), this will add a strong shot of color to any room, and you can casually lean it against a wall or put it behind furniture to lessen the impact, depending on what you want. The easy factor comes from the fact that the paint job should be imperfect, it should not be flat or even in any way – I should mention that you definitely should use a hand brush and not a roller if that’s not obvious – or it will be boring and flat.
2) The second (but not the last) bit of genius in this room is in her use of a floor lamp to hang a decorative object. I would suggest a small mobile, since there is never any normal place for those things to go, unless you’re a fan of low ceilings.
Some other details of note: the glossy white floor and the textured cream walls in the background. This perfect neutral backdrop becomes a perfect forum for furniture and art to pop.