Are some of my plants underwatered?

[OntarioGoldenHash]

Here is a little update on my first grow. Here is a nice close up of my fav bud, we are in week 4 of flower and the buds (30 or so) are really starting to form. This is 'Dark Angel' and the smell is just gorgeous. One plant is still in veg else where as it decided to stop growing, the other 3 are in flower with one not recovered from being underwatered. 5x5 tent next I guess.