0soyoung
Imperial Masterpiece
Do the heaviest wire first, then the next heaviest, and etc. until you are down to the thinnest wire out at the tips. Then when you lay on the next thinner wire it goes in the same direction as the heavier wire --> no crossings. It makes taking the wire off (or just some of it) so much simpler. Ryan has a nice video on this.
btw, you should be able to bend the trunk a lot more. Simply twist it in the direction that will tighten the wire as you do so. The aluminum wire you are using may not hold (copper would work much better) - rig a guy to hold it in position (it is better if the guy ties to two points on the tree rather than one end being on the pot or if it must, have a second guy to balance the pressure so the tree doesn't pop out of the pot).
btw, you should be able to bend the trunk a lot more. Simply twist it in the direction that will tighten the wire as you do so. The aluminum wire you are using may not hold (copper would work much better) - rig a guy to hold it in position (it is better if the guy ties to two points on the tree rather than one end being on the pot or if it must, have a second guy to balance the pressure so the tree doesn't pop out of the pot).