I think that villain should have let go of a bluff altogether on the grounds that hero is new to the table and, from villain's perspective, hero has played this hand kinduv goofy. So, The possibility of Qx isn't too out of line and, without knowing more about villain, the possibility of him calling your bluff isn't too out of line either.

Now, having said that, if you are going to bluff, 200 is just so much better. A push should be saved for later in the game, when you know your opponent's tendencies and have a betting history to work with.

Argun