I wouldnt flip about the humidity personally. Open bowls of water WILL help some regadless of it's temp. My humidity was barely over 20% for most of my vegetative growing.. it's just terribly dry here. Basically if it's fine for humans the plant will be fine.

Also on the fan leaves, just keep after it day to day and try to let the light hit the branch tops. Thats part of the fun in my opinion.