finally got it wired. probably pretty sloppy...
I too think you have demonstrated a really good eye, and in reality that's an important part of the entire process. If there is one lesson you could benefit from at this point is not to feel guilty if you find a tree that seems to not need a lot of work, just a little chiseling off rough edges. Don't feel that it is necessary to do too much to a tree. Let your eye be your guide and lean to trust it.
From that point you will discover where you need to be aggressive and where you need to say look what I found after all you other guys walked right by it. I have seen more than one really fine piece of material ruined by the compulsion to hack and slash away at a nearly recognizable bonsai rendering it down into what is politely called a potential bonsai. There is no crime in finding a nice tree and realizing that it just needs a pot and a little artistic tweaking to make it into a bonsai.
These appear to be Eastern Red-cedar (Juniperus virginiana) and nice material. The foliage should be turning purplish about now. Nice work!