You've done some remarkable technical work here! In ST:TNG I always found this particular drydock design to be rather cumbersome looking, as compared to the typical design like the one you have in the background. Now that one always seemed so practical given that it could accept most any kind of ship!
It blows my mind that I first saw this on an old episode of Star Trek: Voyager, and then I come straight to my room and find this for the first time ever on deviantART. And it's amazing.