i was thinking about laying it all out using a program, but I figured ‘screw it! lets just have fun!’ and so I am just going with off the top of my head and how I see it in my head xD
but with the outer columns I created a 6 cube high column template so that when it comes to the next level I can easily use that column to create the outer walls ( bark) again without any delay of doing it layer by layer.
Roots and detail work will have to come after the tree base is done.
I am also using this program http://www.plotz.co.uk/ to help with my circles and ovals that I will have to use to create the branches in a smooth way.
update: they are starting to build layer one!
http://s6.postimg.org/80gqcu5pd/screenshot_277.png
http://s6.postimg.org/ocqs2kk0x/screenshot_278.png