Long hand [Sora no Woto]

I don't think this counts as QUALITY. The opening was based on artwork by painter Gustav Klimt. who uses similiarly elongated proportions as shown here NSFW. The girl in the middle has the same pose and proportions as Kanata. Similiarly the butt shot is based off this painting also NSFW so the opening as actually a lot tamer than the original

Her right hand is very long.
Link to OP this screenshot is from (because it's really good)
The OP focuses on their butts at 1:07. Strange. You've been warned.

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That makes me uncomfortable