Plants look good to me...
a word of advice I wish someone gave me when I was starting out: Make sure you leave enough vertical space for the plants to "stretch" when you flip them to 12/12. Some plants can double, even triple, in size due to the stretch. I've lost more than a few great looking kholas because I had to literally chop them off early cause they were bumping my lights.
Wish you the best of luck and buds.