So, in classical (Greco-Roman) visual arts there were some pretty serious studies about proportions and how to portray humans. This is why there are some pretty distinguishable styles. This one I think is an example of contrapposto, which is supposed to give the idea of movement, and increases perceived attractiveness. Not different from modern day influencer posing to take photos that, to our eyes, look very natural but make them prettier.

Older Sony mirrorless have most of what you’re looking for. I got a Sony a6000 for 350€ and it has auto iso with cap (but not auto shutter speed with cap), pretty good custom controls although I wish for more, great size, great autofocus. It does lack great low light performance, I also struggle with that, but maybe a full frame would be better for that.

You may want to try it out for cheaper and then buy lenses, and once you’re committed to the ecosystem buy a nicer more recent Sony.

Aren’t these just German words?