Hay bro looking at the colour of the plants they are in great health but due to the small pots at the start they have been slightly stunted.....basically what's happened is the tap root has hit the bottom of the pot and its determined the size from there, if you were growing photoperiods you can pull it back with a little extra veg time after re potting but with Autos as soon as they start their on a timer. Next grow plant into your big pots (may I suggest 10-15L Airpots) and you will see a massive difference,you defiantly have green fingers bro.