Artist Bryan Versteeg (see earlier posts here and here) has developed an extraordinarily detailed vision of spaceships, in-space habitats, asteroid mines, space settlements, and other space systems and facilities that he renders in a hyper-realistic computer generated style. His Spacehabs.com website offers a great gallery of works to peruse and purchase.
Gizmodo has collected a nice subset: What a space settlement would actually look like in real life – gizmodo
Here are some clips of how a giant habitat named Kalpana One would look inside: