Give them more Time and the buds will fatten up more. Buds need time to mature
And give them food, forget flushing... its amodern myth
https://www.rxgreentechnologies.com/rxgt_trials/flushing-trial/
your girls look like they want more Time ,If you are impatient, get a tester,,, the plant dont care ( just say thank you to her)
greetings