Martini Glass doesn't look right (like the one in the tutorial).

I don’t see where I can delete this post (even after reading the FAQ). I found the solution in the video version of the tutorial (Index of Refraction adjustment.)

I did a Martini Glass beginner tutorial I found here: I think I followed the directions correctly, but my image didn’t come out right. The transparency and warping of the toothpick and olive look especially bad. Also there are two gray streaks on both sides of the glass and one at the bottom. Can anyone tell me what I did wrong? I included two screenshots:

This is from the tutorial:

This is what I get: