For what it is, it's not bad. The giant is intimidating, the sound isn't too much(maybe some screen-shake when closer?) Also some items aren't duck-through-able, like the kitchen table in the back and the presents, which threw me off at first. The presents i get, but i was just a wee bit too tall to duck under that table, which felt odd considering how out in the open that entire area is.
Maybe have her stop and look around, with a higher alert range every time she reaches a turning point?