The bunny looks wary, this gives tension. The shadow at the lower left corner makes it angsty/grim.
The fact we see the wood plint show perspective lines going to a single point, but can not see that point because the bunny is in front of it make the space smaller and the bunny seems trapped.
Even though the bunny is just behind the sofa, thus is completely save in a familiar environment, which gives that duality.
Also the absence of dust behind the sofa does not distract or make it a "dirty" picture.
The only constructive criticism I can give is to space your text better (let it have the same margins) as it looks you ran out of space.
See "Inside 3" where the placing of the text and smudges actually give it that "something special" element (like "VandalSpy" does).
Or "Psycho" where the margins are even.