Okay, here's what i'll do:
a) move the guy more to the right. create a larger black space on the subject's left. it'll look as though he has more space to move to.
b) clean up the background just a little. the flash has also illuminated the floor and the grass patches. it's a little distracting - unless of course you intended for it to be this way.
c) then add some descriptions of the Nokia 5210 in the blank space created, pop in an image of the orange 5210 and Viola! you've a Nokia ad.