If it was mine, I’d work with this front. I don’t mind the uro at the base, but don’t love the long scar at the top.
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Here is a ginkgo that was owned by the Alabama Bonsai Society, pretty big and has a flame shape.
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This is the link to mine, grown from seed for 25+ years. It’s a little squat compared to yours. With a few growing seasons, yours can develop some decent branching and without any wire, it should develop that flame look on its own.
In 1996 I collected 11 ginkgo fruits (incredibly foul-smelling), and seven of them grew; 4 are still living. This one has been in the ground in Iowa, chopped back annually for the last 14 years, and was dug this spring. My buddy brought it down this weekend, thought I'd share. It's about 18" tall, and developing some chi-chis that may become problematic for taper, or if they continue extending, can make for a powerful trunk.
Haven't decided what I'll do with it yet, but will enjoy turning it around for a while.