They're quite atmospheric images, Vaughn. I resorted to a 24mm tilt/shift lens on my last visit to Avenue of The Sequoias in Victoria's Great Otway National Park, but still ran into problems getting their 75m height. I swapped to 45mm (MF) with studies of the light and shade on the lower trunks in arrangements (similar to photo 4 in your line-up) and this worked very well indeed. They are huge, graceful, straight and very sturdy trees; planted in 1936 as part of an experimental plot on land that gets a lot of fog and mist, which is how sequoias 'drink', by taking in moisture from their crowns. I will return again this winter for more imaging.