Smoke
Ignore-Amus
Lol, I was thinking something similar only tall and skinny. I think with trees though variety is the way to go. Same for any collection I suppose. I like your trees. I get the feeling that thinner trees are seen as inferior or "easy" by some.
I am attracted to the skinny ones (trees that is) for their elegance and delicate, picturesque grace. I am really inspired by this one. I can't remember where I found the image.
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On the topic of variety, I realize there isn't just fat and skinny, but, a wide range in between. It just seems that the tallest/skinniest are also the fewest.
Not inferior, more difficult. More difficult in the sense that like everything that is done in bonsai is about being able to hide the most faults and "project" an image of perfection. It is very hard to do that with skinny trees. Skinny trees have no large trunk to draw away attention. They tend to have graceful trunks that need to be blemish free and have soft undulating curves. If the trunk is slender but carries a more rough nature, that "look" needs to be carried over to the branches and twigs. All of this is easily seen with a thinner trunk. Like bunjin, the simpler they get, the harder they are to do.