In the iFlora-Imageshop you'll be able to purchase most of the images.
Chamaecyparis lawsoniana
Chamaecyparis pisifera
Juniperus communis
Juniperus sabina
Metasequoia glyptostroboides
Platycladus orientalis
Sequoiadendron giganteum
Taxodium distichum
Thuja occidentalis
Thuja plicata
Xanthocyparis nootkatensis