For these a refreshing healthy feel was the story I was going for. The first one with the glass was about a more refreshing and nutrient rich take on water and adding the cucumber cut on the side I think helped tell that story. The glass was a bit challenging to light. The second one overhead would have been hard to tell there is a glass of water so I substituted it with some fresh strawberries as a healthy snack.
The red strawberries add a vibrance that implies health and vitality.
As to the glass, I would say more diffusion to kill those direct reflections.