That must look imposing from head on to see something as massive as "Space Dock" to come flying at you at Warp Speeds.I seem to recall there was a 3D mesh of a mobile Starbase designed years ago (maybe by Mr Wilde?), which looked similar to Spacedock and was fitted with a massive warp ring built into the outer sections of its upper "dome". It would then travel at warp essentially bottom-first...
I can imagine the Warp Signature for moving a Space Station of that size must be MASSIVE and very hard to hide.