Welcome to RIU
You can't ever get enough CFLs imho.
Mostly they look like 2700k with one 6500k... is that correct?
If you can grab some 'Y' connectors and put a couple down closer to the bushy part of the plant, that would help.
Tell us more about your environment. Temps for starters, then if you have anything reflective at the top of your area.
Plants look like they're about 3 weeks into flower... is that correct? They look pretty nice.
-spek