Hi-I'm not an AV expert, but have several years of growing experience and in past spent a lot of time talking with AV enthuiasts in forums, chat rooms and at shows. It appears you have quite a nice collection there!
It is obvious, however, that they are crying out for more light--see the leaves reaching up with long stems? Once you set up your lights, you will be amazed at the response and...they will reward you with blooms as well. AV's do not mind slightly cool temps, but they hate cold wet feet. Over watering is the primary reason plants die. Good luck and I'd love to see a pic of these plants in about a month.
Hope this helps.
These are blooming for me in front of a sunny window right now.