Simple, effective and nice to look at. There are some things I think could improve your image: 1) The triangle of white on the top left edge is not needed, 2) Try moving the white phone just a bit to the right so that you can see the entire line of the boundary of the white/black, and 3) The whites should proably match better - remove the yellowish cast to the area under the black phone. But that's not saying it's not a great submssion as it is! Very well done!
Very nice on the challenge. I think it would be more effective if the shakers were closer to the intersection of the colors and then crop in closer. Good Effort. 8
Wow very interesting photo! The only thing I see is moving the little white phone to the right just a hair so it's not touching the white the other phone is sitting on. Otherwise, it's very pleasing to look at. I love b&w images like this and you have done a great job with this one.
Not enough depth of field. The shot has clean lines between the black and white, the out of focus sections just blur this. More light, smaller apperture is needed.