I agree; quite a few times he starts a move well, going past players, doing a few tricks and using his pace but then seems to lose belief; almost as if he thinks 'I've got past two players and run a hundred yards, I surely can't do much more now without being stopped' and so he gets stopped. He needs more belief and confidence but that will come.
he reminds a bit of Anelka when he was at Arsenal, but not as confident (or stroppy).