I'm really interested in this topic because as a french player of hoi4, I have to confess that something like 50% of my games are with a historical France. I try to respect the history as much as I can, until the battle of France begins, of course ...
And frankly, I don't have anything against Léon Blum or Pierre Laval, and I don't care that much about absolutly having Daladier or any other historical guy as my leader.
BUT ! The portraits of these two are reaaaally ugly to me, comparing to Daladier's or any other leader/general in the game.
In fact the problem is not that they're ugly, but rather the style with which they were painted, that is obviously not the same than all the other portraits in the game ; they are much more cartoonish than realistic.
And the result is that it really induces a dissonance in the game, that almost breaks the immersion.
Of course, you might think "oh stop crying little -insert insult about whining and annoying people-, it doesn't prevent you from enjoying the game !" and you are absolutly right, it doesn't affect the gameplay at all and the game remains one of the best (if not the best) of all time.
But the point is that looking at all the beautiful portraits is one of the pleasure I have during my experience of hoi4.
And the fact that now it's not possible to enjoy my favorite country without having to see Blum's or Laval's ugly portraits until 1946 or longer, whenever I open the political tab ... it simply bothers me.
I agree that it would be great to have an idea of the mess of french politic in the 30's with 7 presidents of the council within 4 years. But I can understand that it would be pretty hard for the developpers to set up this chaos ...
That's why I think the simplest solution would be that the artists of Paradoxe remake the portraits of Laval and Blum in a more realistic style.