Beautiful model by RC Haselius, I believe. Note the oddly "small" upper deck hatch and the deeply recessed main viewport. While Haselius did model, render and even animate a stunningly detailed and screen accurate Jupiter 2, this was a personal interpretation, his solution to fit everything depicted more or less reasonably within the hull.

One can see his animations for both his "accurate" J2, his modified version, and a few other concepts upon his YouTube channel...

https://www.youtube.com/user/Haselius00/videos

As for SciFi Meshes.com,regrettably, the site was MAJORLY hacked a few years ago. It was so "corrupted" the site owners had to purge the offered downloads and that feature was never restored. Even now, if one goes to the site, one is smothered with unwanted pop-ups.

Sincerely,

Bill

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Tempt the Hand of Fate and it'll give you the "finger"!