Yes, I know, it is MLCad; no, it is NOT LDD, it is MLCad or LDraw.
Anyway, now that that is out of the way, here is bespin.
I realized while looking at reference images that bespin is not all tannish colored like I thought, but white. But I had already started with this using the colors that you see during landing and in Battlefront Bespin map.
So here Liam Tra'Kelv is, on Cloud City attempting to locate the armor of Kian Tra'Kelv when the Jedi Council sends him a signal saying to go to that very city. So as Jedi Apprentices and Masters jump down to attack the platform from one side, he came out to attack from the side of the door.
Sith, retreating from the onslaught run right into him and his apprentice, his sister, Jaina Tra'Kelv.
So this is the bridge to the landing pad, Liam and Jaina coming from where the Sith least expect it.