The first one makes me unsure if the focus is the ceiling or the incoming light. I like the second one. The open space adds to the isolation of the image and puts focus on the light, and also allows the eyes to wander comfortably. The 3rd seems to force my eyes to the table. Eye movement seems tight and confined, maybe a glass vase on the table or something to focus on being highlighted by the incoming light rays. My 2cents :> TMG