I mean Eva Braun was a photographer so not sure why her sketches would have been good? But I guess she was trying to shoehorn hitler being a bad artist but just didn't know how to tie it in?
Call be old-fashioned but I prefer my jokes to be funny because they're clever not because "haha hitler couldn't draw amirite"
The implications are that hitler drew up the sketches. You know… The whole failed artist thing causing him to join the field of genocide tyrant instead.