Earlier this month, Andrew Robson and I got a chance to walk through the 7th U.S. National Bonsai Exhibition, held on September 11th and 12th in Rochester, New York, and record a critique of ten trees that caught our attention. You can listen to the conversation, which includes commentary from special guest Nao Tokutake, at the Bonsai Wire Podcast.
The photos below correspond with the trees we discussed. For high quality photos of the complete exhibit, pre-order the exhibition catalog at the discounted pre-publication rate from International Bonsai.

Zelkova

Limber pine

Washington hawthorn

Shimpaku

Yaupon holly

Colorado blue spruce

Miyajima white pine

Catlin elm

Satsuki azalea

Rocky Mountain juniper
Listen to the critique at the Bonsai Wire Podcast.
Pre-order the exhibition catalog.