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I made a small mistake actually the images are mostly taken from book covers๐Ÿ˜…๐Ÿ˜…
I leave you the sources:
"The Venetian Court" by Charles harness, "Rifts Sourcebook 1" and a book called "Rischio calcolato" which has a different cover in the English version

If you were looking for science fiction magazines to take inspiration from, i recommend you
astounding science fiction, Byte, analog and galaxy magazines.
They got wonderful illustrations!๐Ÿ”ฅ

Thank you so much!! Those are very cool references ๐Ÿ’š