Well, I did not get the final render last night 🙁 . I had some problems getting the alpha channel to show up on my input nodes. After finally getting that fixed I was able to continue but my bedtime started to approach and I had to quit. Here is the node setup so far.

I am not exactly happy with the way Johnathan’s node set up is working however, I will complete this scene using his technique and then try Andrew’s and compare the two.

I did look closer at the screen shot and studying the image in the lower left you can see a very hard line indicating the horizon and in the top composited image that line has been almost completely removed. This was the intended result and not as bad as I originally indicated. I will still complete this with Andrew’s technique and compare.