there looking good, you may start adding veg nutes to those that look yellow, start with giving 1/4 of the dose it sais on the back.
dont discard any yet, Id let these grow then transplant them into not really big but medium pots and let them sex, then discard the males and keep the ladies. exept for that one in the top left which looks like dead from birth.. sucks to get those Ive had some myself too.
the ones that grow big are usually males, the ones that look like they are 5 days behind are usually females.
time will reveal the secrets of nature keep things clean, good luck !