The plants looking good, I see your day/night temps are the same is that a mistake? Also yes up that humidity if possible, add a bowl of water to the grow room if needed just to try sending moisture around. If you're only at 2 weeks you can probably get by without adding to your solution, but it'll most likely need it soon. A small dose boost can always be a good thing as long as you dont over do it.
Happy growing to you. Great start!