That is actually a good depiction, too.
Which depiction is better would be a matter of preferences from this point on. Your idea and the artist's idea both work, the question is if you prefer HEA beeing stubborn or not.
It is not unimportant, since HEA beeing singleminded and stubborn is part of her charm, so the artist wantet to incorporate it.
The thing with wasted is, she would be kind of unresponsive. We already had a scene where GS carried a drunk HEA into her room and she was kind of knocked out. The scene works better when she is aware and responsive.
And I think she looks charmed enough, her expression is just lovely.
Oh, and keep in mind the artist kind of rushed the drawing so people don't have to wait for hours during the event, so of course the faces are a little unpolished. HEA would look better (more refined) if the artist did it at home, where he has more time to work on the details. Her expression is superangry, but the drawing had to be rushed, so thats why.
Personally, I like that, since it exaggerates it in a humurous way and stubborn HEA is just lovely.
(am I a confirmed fanboy?
)