They will bulk up over the next couple weeks.
Take pictures in the future using real white light, this way if you have an issue it can be seen in actual clear light. The ilight you used on these add yellows and browns, makes it hard to diagnose anything. Same with people who use burple lights.
You are on the doorstep of the bulking phase, very crucial you keep everything locked in. These look great, just early in the bud building phase. Great work so far keep it up!