Here's the US National Bonsai Exhibition overview, including the winning trees. This year's edition was absolutely stunning.
The winning trees

Japanese black pine
Suthin Sukosolvisit

Rocky mountain juniper
Tim Priest

Japanese maple
Dennis Vojtilla

Dwarf Japanese five-needle pine
Troy Schmidt

Shohing Bonsai composition
John Kirby

Willow leaf fig
Johnson Teh

Kiyo Hime Japanese maple
Brad Foresyth

Rough bark Japanese maple
Kuhen Smith

American Larch
Mark Arpag

Sierra Juniper
Jeremiah Lee

Brazilian rain tree
Sho Fu Bonsai Society
Overview of the show













