I noticed that some of your pics have the Phals in bright light. I don't suggest doing that in the future. That can cause pretty bad sunburn. They grow in the shade.
How are you growing your Phals?
The following is a link to someone's Flickr page. It shows you what kind of habitat Phals grow in.
It's a swamp forest in Malaysia.
http://www.flickr.com/photos/sarawaklens/4097184660/
Temperatures in this area are usually between 60 F to 95 F. Humidity is 80% - 100%, although a Phal can handle lower humidities of 60% to 70% just fine.
Unless your outdoors conditions mimics that of a swamp forest to some degree or another, I don't recommend growing them outdoors either.