I understand that you are not creating a full fledged wine label - we will add in the other information (wine type, vintage, alcohol, etc) afterwards. This "logo" is the main part of the label.
I would like the mock up on a label size suited for a wine bottle, which means using approximately the sizes I provided. The size can vary, slightly, but ultimately must fit on a 750ml wine bottle.
A new MV logo is completely acceptable and encouraged. The original was designed many years ago, and it is now time to update.
I hope this feedback helps. This is my first time running a contest, so If you have other questions please let me know.