Luke, don't mess around with gum trees. As beautiful as they are, they are prone to falling suddenly and unexpectedly and that is one huge tree that could take out a couple of homes in the process. I've also found that if part of a tree dies, it can affect the balance of the rest of the tree so it becomes unstable even though it may look healthy. If an arborist says it needs to come down then I wouldn't waste time, you could void your insurance by not heeding advice. Do you need Council approval? Sometimes that can take a while to get.

Ask your family what they would like to see, not designwise, but plant materialwise - color, texture, fragrance. Even ask your mother-in-law. You have provided some architect's dream, with the bold geometric forms, the bold palms and cycads. How about something warm and fuzzy. Something to rub your hands on as you head to the door. Some color and fragrance beyond the white and palm trunks. How about vines to soften the hard edges of the planters, fill them with ground cover plants so you won't see the mulch in a couple years, add bulbs of all seasons to bring cheer, glossy leaves to brighten your day. Bring nature to your entrance area to warm up the arrival of your mother-in-law. How about saving room for a couple chairs and small table, to sit out and prove that people actually live in this piece of marvelous sculpture, and add the warmth of an outdoor room. Spend some time at the library with books about the architecture of Frank Lloyd Wright. He is the one who introduced the architectural design idea of the outdoor room. Come to think of it, I don't remember ever seeing a garage door in any of the photos. Guess I'll have to take another look.

I'm from a European background ... Italian and Catholic. Christmas means celebrating the birth of Jesus in Bethlehem. I hold onto generations of passed down tradition ... We celebrate December 6th as St. Nicholas Day (European Father Christmas) ... this is the day that all the house & garden decorations go up! We celebrate January 6th as The Epiphany (this is the 12th day of Christmas - when the Kings went back home) ... this is the day that all decorations get packed away. That's one month of relevant religious dates/events ... just enough time to truly appreciate celebrating the birth of Jesus with family and friends - whether gift giving or not - and "ooh-ing and ahh-ing" over the home Christmas decorations without getting bored with them.

I would not be inclined to plant a Murraya for your hedge. I have a Murraya hedge and am forever clipping it. The branches also become a bit thick to trim. The Indian Hawthorne pictured is in my opinion a more suitable plant. It flowers most of the year and is easy to keep in shape or can be left to grow naturally. It comes in whit or different shades of pink. The pink variety is a slower grower therefore less clipping. Go and have a look at the nursery to see if you like the foliage and flowers. I agree with the comment, not to try to keep the pines which somebody else has planted. This is your home now and you have the opportunity to design the garden. Good luck with your new garden. Jan