I think you did a good job on this aside from the lines in the glass..It looks like rolls of fat or something. I think you should use rounder lines that obey the usual rules of glass. and probably make them clear/lighter shade of red to look more like a reflection instead of this dark black.

The preview was the holdup in adding this piece. It just seems like its gonna be a mess once clicked >.<

I agree about the preview. Also, while I think the cork looks convincing, the needless crease lines in the glass make it look like fabric.

Pretty good, maybe better if you change the preview icon? Kinda hard to tell what it is...