Yea, the reason you readings aren't changing is because you have them on the outside of the tank, instead of inside the tank, so all you're doing is reading the room humidity. Put the acurite inside the tank, on the warm side.

I like your setups though, very creative, and I love the BP on top of the plants in the 2nd picture.

Also make sure you only have the moon bulbs on at night and not during the day. You can keep it on a dimmer if it starts to affect your humidity/temperature. That way you can dial it down and still have a nice little glow.