You can see 50 examples of the Droste Effect here.
https://twitter.com/digitalcitizen/status/1220941274955636736
https://twitter.com/digitalcitizen/status/1221092843583832065
https://twitter.com/digitalcitizen/status/1221124086086148097
https://twitter.com/digitalcitizen/status/1221116589547970560
Digital Citizen 