I think he was more talented at galvanizing an audience than Himmler or Goering, and prettier to look at than Goebbels.
In the same way Ted Cruz and Ron DeSantis will never draw the same crowds as Trump, The Dolph had that special sauce that congels people around a movement.
I can see a history in which Rosa Luxembourg was the firebrand that ignited a national movement but doesn't end up invading Poland over some delusional vision of a New Reich.
For a middleschooler? Sure. For an adult trying to pursue a career as a painter? Nah. IDK if he didn't draw guide lines with a pencil before painting or what, but that's pretty bad on an entirely technical level.