I was going to say the same. Airy flower is usually associated with low light levels. All in all looks like you did a fine job and far better than a lot of growers!
Lighting is something to concentrate on getting right for your space as you continue growing. But most of us have been there. I regularly do 12 oz of flower plus in a 4 1/2 to 5 month grow per plant. Check out the thread:
It’s a very long thread but is a treasure trove of info. Lots of us showing our diy builds and many many questions answered by dbrn.
I (coincidentally) just had a half doobie of Green Crack and I’m digging it! We all seem to be favoring more sativa dominant cultivars–pretty cool!