[monksy]

There are differences between private photographs and commerical products.

Vlog/youtube would be considered to be potentially commerical .. so you would probably be responsible fore GDPR and likeness recording. (The onious is on you to blur)

Video selfie/photograph personal/non shared use - you're free do this

https://allaboutberlin.com/guides/photography-laws-germany

I am not a lawyer, nor is this legal advice.