I like your original front better. The jin on the back is too far forward from the rest of the tree...to me!! It becomes primary when it's in front, when it's on the back it becomes the secondary interest that it should be. The jin is not helping the composition right now because it is so fresh and new and sticks out like a sore thumb. With your original front all the flow heads gently to the left and the jin is screaming hey...look over here!! Which when it tones down a bit will be a subtle reminder to take in the whole composition, but for now is a needy Jr Higher demanding everyone look at them!!
I see why Graham Potter does his fire roasted technique on jin.
Relooking at your two sides, the other main reason I like your original front is that the branches on that side allow for a peek at the trunk, whereas the backside obscures the line of the trunk a bit too much, making it have less peacefulness about it.
What I like is that the branch length seems very appropriate for it's height. Has that been hard to get to or hard to maintain over the years?
Nice tree!!