Hi Kevin,
I think the 4th picture is the best angle for sure... and with very little work you can have a pleasing looking tree....
If this tree were mine I would wire most of the branches down like Bob suggested and cut it back pretty hard. The picture form the top shows that everything is really long, so a good cutting back would tidy things up and help to ramify.
As for putting it back in the ground... not a bad idea. We can get larches from a liner size, trunk size about the size of a pen, to a 3" trunk in 4 years or so. But if you do decide to put it in the ground expect the first year to be root prodution before you see good growth in the foliage and another year before you see noticable trunk difference. On the flip side of that though is the fact that you have a jin at the top, if you were to run a shari down the trunk a ways then the taper would be a less of an issue. This would show that the tree was once taller and lightning, (or whatever story you make up) had killed off the top and the lower branches survived to create a good tree. It is up to you and could go either way and still be a nice tree.
I don't think this will ever be a masterpiece bonsai but you are way ahead of stick in pot status, lol!!! Have fun with this one and keep us posted on what you decide to do....
Jason