Assuming the moon is in the right position for photo's direction, could it be that the lighted side is incorrect? As in the light should be on the "left", not the "right" side shown?
The photo is taken looking north, perhaps slightly NNE. The furthest north that the moon sets is about due west. The Moon could never be where it is in that photo.
The lighting on the Moon is from the correct direction for Dubai but the photo would have to have been taken facing west or WSW.
Edit: also, while I'm not too familiar with Dubai, it looks like the area in the photo is not where the Burj Al Arab is. At least as far as I can tell from looking at other pics on the net...
Indeed, you guessed well.
The Dubai coastline is NE-SW, the photo is facing North so the Moon is low in the north which is impossible on the latitude of Dubai (26ºN).
The angle of the moon is also wrong. At latitiude 26 the crescent would have to be more vertical ie rotated clockwise, quite aside from the fact that it is in the wrong compass point
Re Dubai Pic - I concur with the above and add that the cusp extensions look unnaturally long. The sunlit side of a lunar crescent this thin would not extend as far around the limb as it does here, because the Moon has no atmosphere. A phase such as this I would expect to see near an inferior conjunction of Venus, or an annular solar eclipse, but not for a regular Moon phase. I suspect the whole "Moon" hasn't just been photoshopped in from another photo, it's also entirely artificial.
Re comet pic - If that really was the Moon, the comet would have to be tiny, and the "stars" in front of the Moon even tinier.