I don't see how anyone could feel claustrophobic in a space as large as that. I just wonder if a structure that large could be built. The colonies I have in mind aren't nearly so spacious. I was thinking more along the lines of an updated Stanford Torus. Something like the Vademecum concept.

If structures as large as the colony in the first picture are indeed possible to build; they'll probably be 4th or 5th generation structures. What is humbling to think about is that in spite of its apparent size, one average sized comet contains enough water to supply several such colonies with the volume of water seen in that picture. The vast amount of resources out there boggles the mind.

As for the other picture, you know it was funny. Bet you even chuckled a bit when you saw it. I thought it was a riot. And just for the record, that's not my photobucket account.