next time put the paper pad on a sheet of glass and away from the blue back ground so it become blur. The pad would of have the floating in mid air effect.
Nice idea, but I would have rated higher if the lighting weren't as harsh. Possibly tighten the shot to include just the calculator, pen, eraser leaving the pad of paper as the background.
Concept is OK, but I think the calculator is computerized and may not be appropriate for this challenge. (I'm not suggesting a DQ, but someone else might)
OK concept, just not that interesting of a photo.