Garden Design: Using Only Trees

France was an education in Garden Design with Trees while studying historic gardens there.  French Garden Design, with bushes/perennials removed, leaving trees, are wicked good in intellect while magnificently more beautiful.  A concept not approached in USA Garden Design.
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This dear Garden Design, below, not French but still, only trees, no bushes/perennials. 
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Would be fun to use same plants/house, below, in the French manner.  What does that mean?  Add garden rooms, entries, allees, focal points on axis, pots, urns, gravel, stone, to the Garden Design, below. 
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Quite a few rich intricacies, below.  Trees for buffering winter winds, saving on HVAC, trees for buffering summer sun, saving on HVAC, and trees for pollinators, trees for food to the kitchen, trees raise property values, trees providing privacy, trees providing all year color. 



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Quite fine, above.  I know you're both.  Put it all in your Garden Design.   
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Pic, above, here. Maybe not French, but amazing.....trees.
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" I think having land and not ruining it is the most beautiful art that anybody could ever want to own.   Andy Warhol    " 
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Garden & Be Well,   XO T
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"So the tree rustles in the evening, when we stand uneasy before our own childish thoughts: Trees have long thoughts, long-breathing and restful, just as they have longer lives than ours. They are wiser than we are, as long as we do not listen to them. But when we have learned how to listen to trees, then the brevity and the quickness and the childlike hastiness of our thoughts achieve an incomparable joy. Whoever has learned how to listen to trees no longer wants to be a tree. He wants to be nothing except what he is. That is home. That is happiness."  Hermann Hesse
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"It all starts with the wolves. Wolves disappeared from Yellowstone, the world’s first national park, in the 1920s. When they left, the entire ecosystem changed. Elk herds in the park increased their numbers and began to make quite a meal of the aspens, willows, and cottonwoods that lined the streams. Vegetation declined and animals that depended on the trees left. The wolves were absent for seventy years. When they returned, the elks’ languorous browsing days were over. As the wolf packs kept the herds on the move, browsing diminished, and the trees sprang back. The roots of cottonwoods and willows once again stabilized stream banks and slowed the flow of water. This, in turn, created space for animals such as beavers to return. These industrious builders could now find the materials they needed to construct their lodges and raise their families. The animals that depended on the riparian meadows came back, as well. The wolves turned out to be better stewards of the land than people, creating conditions that allowed the trees to grow and exert their influence on the landscape."  Peter Wohlleben, The Hidden Life of Trees: What They Feel, How They Communicate.  Via, Brain Pickings, here. 
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Designing with only trees too simple ?