First grow - Unknown Strain

these photos were taken last week, 1st of jan, some leaves on one of the plants is turning purple, but it also has some seeds/pollen sacs but still has buds, hopefully it keeps a couple buds as I think it may be a different strain to the others, the others haven't really changed much and don't seem to be budding a lot haven't posted for a few weeks because haven't noticed any significant changes, some pictures will be the same for a couple weeks then there'll be new photo's I've taken today when I go to water them later [I was advised to water them when it gets a bit darker as its a hot day and Im giving them nutes tonight so I don't want to cause heat stress]