Of course it is alive. Why would'nt it be. It was a healthy pine in its container.
I am more concerned that you did not bend the lower part of the trunk. That is way to straight for the bends higher up, to my taste.
One of the previous posters above was pretty adamant it was a gonner!
The straight section you mentioned will be a part of the vision i have for this tree going forward, my main issue was creating he bend in what was a dead straight tree. Now that seems it appears to have survived this initial styling, I can progress it further next year.