It really captures the feeling of Phase II. Though I think you might have the structural frame of the dock a bit oversized. It could be my eye that is off, however. 
Have you considered using the Phase II shuttlecraft?
Either this:
http://en.wikipedia.org/wiki/Image:ShuttlecraftP2.png
by Mike Minor, or
http://www.shipschematics.net/startrek/images/federation/shuttle_phase2.jpg
by Matt Jefferies?
Considering what you've been able to do so far with designs that admittedly have an unfinished feel to them, I'd love to see your take on the rest of it.

Have you considered using the Phase II shuttlecraft?
Either this:
http://en.wikipedia.org/wiki/Image:ShuttlecraftP2.png
by Mike Minor, or
http://www.shipschematics.net/startrek/images/federation/shuttle_phase2.jpg
by Matt Jefferies?
Considering what you've been able to do so far with designs that admittedly have an unfinished feel to them, I'd love to see your take on the rest of it.