Congrats on the new pickups! I'm not entirely sure from the picture provided but all three of them look be flames.
You should be incredibly carefully housing 3 cresteds together. You need a ton more hiding spots for all of them to get away from each other to feel secure. Provide at least 3 different sources of food (one for each), a ton more foliage, as well as paper towel and toilet paper tubes to hide in. It is almost guaranteed everyone of them will be missing a tail, or their tails will be nipped, possibly worse without a careful eye. I would have at least one more tub setup in case they start fighting, it can happen out of nowhere.
Edit: I forgot to add here is a great video to show how to easily get a stuck shed off your geckos. You need to do so quickly or else it may loose a toe/toes: http://youtu.be/mSuirE906p0