Pete,
another mixed media item, and this one as a goblet.
Overall I think it's an attractive item.
There is a slight recurve just before the lip and another at the bottom of the stem just above the pewter base ring, but as a prototype I know your eventual finished piece will address those and they won't be there.
Like Seventhdevil I'm not sure about the lower rim, if for no other reasons that any dribbles will pour all over you the next time you tip it up to drink again.