You have a particular question?
Snakes like a ETB, GTP, ATB, etc. are much different than the two snakes you have. They have much more delicate bodies and require gentle handling, especially when young. They also have extremely strong feeding responses and it is almost guaranteed that you will get tagged. Getting tagged does not hurt, well I don't think it does. However these guys have pretty good sized needle like teeth that draw blood easy.
They also require better husbandry, or most contestant and concise keeping. They are not as forgiving as a BP and without the proper setup will run you a big bill with a reptile vet. If you decide to get one make sure you get the enclosure set up a few weeks in advance and get it dialed in. It may take you some time to provide the proper temps at the different perch heights as it is not as simple as setting up a uth. Im not saying it difficult but it takes a little more effort than a simple uth. The other big factor is finding the correct substrate that will give you a proper humidity range without driving you nuts dropping low everyday.
Do your homework and make sure you know what you are getting into. I got my GTP cage from here and love it. Out of the arboreal snakes the ATB is probably one of the best to begin with, imho.
http://pvccages.com/