I don't think it is the straight section itself.
The parts emphasizing and amplifying the straight sectioned are making it way worse than it is.
The long flat plane the bottom of the foliage creates is the worst, being the same size as the straight part makes it even MORE evident. That the pots straight line is the same length....x3 bad!
A Stick figures Ala Smoke let's us see how that plane is pointing towards the straight trunk section, and how it is further enhanced with the jins.
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Our eyes are longing for the support of a strong trunk underneath that canopy. Support that that we feel should be there via that missing trunk line of the big jin.
But if you start to break up those emphasizers......
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Your eye can more easily flow up into and thru and back down the tree.
Bending that trunk up with no reason why is ruining the whole design you are paying at least $70 of the $170 for, as every bit of styling would go straight out the window.
So why not then just buy a $35 one with a shorter more tapered trunk from the nursery?
I like this one though.
With the RIGHT fixes!
Sorce