You could have used a more consistint background, the darkness seems to become brighter towards the bottom and top right of the photo. This could have easily been taken care of using contrast.
creative idea; would like either a bit more room on the right or cropped even closer, nice blur on the cord, stickers (obviously on for quite some time) detract from the subject.
I think the cropping is a bit too tight on this one, I think it would have been better too see the chord too and a bit space from the phone on the right, I can see from the white on the phone that the lightning might be a little to harsh, and there is a yellow hue over the picture, wich could be corrected in ps Or in th e white balance setting in your camera, Best of luck :)
I was goint to take a very similar shot, but thought if the dial could be cought in motion (blurred) it would help. Not sharple focused, not well lit, could use some sharpening.