Hey thanks so much!
I'm actually not as happy as I was with my new layout because I had to rearrange again a little bit, as I bought another Cold habitat for the new dragons (prefer to have another Cold if possible, than have them in Water or Fire)
All my farms are now on my quiet/breeding island as well - until I eventually get the 6th island (definitely EVENTUALLY, as the XP to level will take FOREVER, haha) and move them there. I've had a quiet/breeding island for ages now but this is the first time I've been able to leave more of the existing trees and rocks and still have room for everything else. I am quite happy with that aspect.
I am still reasonably happy with the rest of my islands...though I always get new ideas or see things in other people's parks that I love so you never know when I'll start moving stuff again, haha.
Thanks again!