I think this is very relevant to this discussion https://youtu.be/qUb0JnEsOHQ

Hey, den hab ich am 19. in Frankfurt gesehen und mich drüber gefreut

I think this references the markings for confirmed kills on ww2 aircraft https://en.m.wikipedia.org/wiki/Victory_marking

Ich sammle die Dinger, bei kostenlosen lipo and li-ion akkus sag ich nicht nein

That first one is just minos prime from Ultrakill

As someone who is gluten intolerant this picture scares me

Bottom right is Kara from Detroit: Become Human