This is just toally my two cents, so take it for what its worth, but… if it were me, and I was just getting the tree only, I’d do it just one side of my arm/shoulder and not do a wrap around. I think for a wrap around to be fully functional it needs other images to work. So if you added birds, water, or some other elements it plays better in my mind. Ask your artist, though, they may be able to pull something off, especially if you do the tree blowing blossoms into the wind. Maybe the tree on the front and blossoms drifting to the inside of your arm?

Maybe someone else with a sleeve/wrap-around can chime in and give some good advice?

I love japanese style tattoos, though, so I’d be excited to see what you do. Let us know how you decide to go.