I said I'd get back to you with a bit of commentary on your images. As I already mentioned, quite a few of them are really pleasing and eyecatching, but I prefer the more conventional ones such as, Willows and Shadows, Mist & Snowbank, Mountain Bluebird on wire fence, Birch Canopy, Winter Lake Shore at dusk, Nuthatch in early Evening, Evening colour on Driftwood, and perhaps a few more.
You have a curious affect with some of your shallow DoFs which doesn't work for me, such as 'Aspen Leaf after Morning Rain". Whilst the leaf is beautifully sharp with nice, clear drops of water, the rest of the image is too dominant despite being out of focus, The deep shadows and crevices in the rock tend to compete with the central focus of interest.
Other images, such as 'Cow Parsnip stems' again seem flawed because of a few OOF stems which are competing for attention with stems that are in focus. (I'd be tempted to clone them out).
Similar situation with the Aster Stems and flowers where the DoF is so shallow the OOF flowers seem to be about the same distance away as the in-focus flowers. There is thus an effect of confusion between the blurred and sharp flowers which doesn't seem right. Basically, I feel that an OOF or blurred part of an image is sending a message to the brain, "Don't look at me. There's nothing of interest." A sharp, in-focus part of an image is sending an opposite message to the brain. (Lookat me!). Place an in-focus subject next to an OOF subject, both of which appear to be in the same plane, and the eye can't avoid taking in the blurred part within the same glance.
One image I almost forgot, which I like a lot; The Hawk Owl, late winter 2005. That's outstanding, but one small criticism, it doesn't look tack sharp. I suspect your shutter speed of 1/200th wasn't fast enough for the 300mm lens.