When I buy a really cool interior, I often want an exterior for it. So I make it. But I do it in the construction kit fashion. I make parts, wall panels, wall panels with doors, wall panels with windows, etc, that are all sized to be easy to move so that they fit together. Once they're made, it's easy to create a massive exterior with repeated pieces. I did a whole, large medieval shop with exterior and interior, 3 stories, and a queens post trussed roof using, I think, nothing but the rounded cube, lores cube -- oh, and a flat triangle. It took me a day to make the set of pieces and another day to put them together into the shop itself. Yes, there was some exporting and importing, but not so much that it took a long time. For something organic.... Yikes. Yeah, would be remarkable. And take forever.

Edit: Let me be more precise. For something organic and complex. Because I think I could make a slime mold in five minutes. All I'd have to do is start trying to model, I mean morph something. Anything. It always turns into a slime mold when I try to model, I mean morph something. :D :D (You don't want to see what I did to poor Rex's face.)

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PoserPro 2014, PS CS5.5 Ext, Nikon D300. Win 8, i7-4770 @ 3.4 GHz, AMD Radeon 8570, 12 GB RAM.