The second photograph is of Cabernet Sauvignon grapes. This is a grape which develops quite a bit later than Merlot and you can see on the individual bunches some grapes are quite visible whilst others are only just starting to form. At the vineyard where the first two photographs were taken there is almost a two month difference in the harvesting of the two grape varieties
The final photograph was taken at another vineyard and is of Pinot Noir grapes. This grape is another earlier developer As you can see the bunches of grapes show good berry formation.
The two vineyards we went to are at between 800 and 900m above sea level, which means that although it gets pretty hot in the summer the night temperatures are cool, which ensures that the grapes maintain their acidity.