Iranians won't know what Mohammed looked like, so this chocolate "art" could turn into something useful. Some Iranian will associate the characters as Russian (as you did), and pit outraged Iranian Muslims against the Russians—the ones enabling Iran's nukes. If I had the photo (and any Photoshop capability), I'd do it myself.
Just a disinformation "seed" for Iranian bloggers.
Yeah, as if Westerners know what Jesus looked like. The image of a blond-haired, blue-eyed young Ted Nugent as the son of God is mediaeval fiction -- any kid born in Bethlehem in 0 CE was overwhelmingly likely to be dark-haired and olive-skinned.