Nicely done Jake, particularly the blending.
I tried a similar exercise with the Catherine Hill Bay jetty south of Newcastle and quickly learnt not to use two different lens.
I've found a couple of useful tools in CS6 that can make a dramatic difference to your PP, the Gamma slider under Image>Adjustments>Exposure and the Dehaze slider in Camera Raw
fx (Effects).
PP is very subjective and unless someone is paying you for the shot the only person that you have satisfy with the final result is yourself.
Keep up the good work.
PS: The D600/D610 is thought to be one of the best cameras for this type of photography. I'm on the lookout for one to have modded with an H-Alpha filter
The Milky Way photo comprises of 6 images of 80 seconds each at ISO5000 and f2.8, I used my Nikon D610 which seems to handle noise extremely well. I stacked the images in DSS using Darks and Bias frames, no flats but I corrected the vignetting in the images before stacking (or at least attempted to) and processed the result in Photoshop CS6. The foreground photo was taken later in the morning at Point Leo and I blended the images together in Photoshop. 
