Wow, those are looking way better!
Be careful not to spritts them with water for to long into there life, definitely stop by the time you flower, as it could lead to mold problems.
That low humidity will start to become a good thing once you start to flower, not as low as the 10% you had, but 40-60% right now during vedge is what you want, then 40-50% during flower, and dropping down to below 40% for the last couple weeks before harvest is the range you'll want. That dryer air later on will improve quality and yield by stressing them in the right way to boost resin production.
I don't know much about DWC, but you can find a wealth of knowledge and more tips to improve quality and yield in the tutorials Nebula and Sirious have, just hit the growweedeasy.com icon in the top right of this page, and you can search all kinds of good info that you want.
Best of luck with your grow! Yer definitely a hardier soul than me, hangin out with the Abominable Snow Man up there!!