That is definitely not a grade A. You can see the hump in the back of the pitchers.
By fast draining, i mean if you pour some water in, it very quickly will run out the bottom, but the medium will stay wet. Thats why I recommend a mix of peat/perlite/vermiculite/some sort of bark in about a 1:1:1:2 ratio.
I water all my plants every day or every other day, all neps come from an area where they get about 7mm of rain per day, so watering every 4 days or so is unnecessary.
The leaves should not be papery. You should probably move it to higher light if possible.
Globosa is a lowlander, and yes, humidity is very important. Pretty much everything that applies to bical applies exactly to globosa.