Emperor said:
There was probably stuff missing but before the baot one he said "don't go overboard"
I also noted him saying "let your mind float" to the woman before she drew the picture that ended up being the ship in waves.
It was interesting that the only error was when he said it would be a cross but the woman drew a Star of David. I think this gives us an inight into what he does (and certainly would alert anyone even slightly sceptical that he is not remote viewing).
My suspicion from this error is that he has provided her with "suggestion" to draw a religious symbol (probably she was hpnotised beforehand without knowing it). Most white western people would automatically draw a cross in response to such a suggestion. This woman drew a Star of David - perhaps she has a Jewish ancestry. Anyway, it shows that he was not "seeing" what she was drawing - (the cross is not physically similar to the Star of David) just had knowledge of the subject that would promote the drawing. At this point, anyone critical would have to conclude that he was not remote viewing in any conventional sense. However, these "psychics" could not see past the high level of hits that Derren was able to attain.