As noted before, there's really no way to do this character "right" in a park meet setting. Her features are so exaggerated in the movie that relatively few women could convincingly fill her...shoes.
Also, as noted above, she is a Toon. As much as everyone says she should be face, that really doesn't make sense, especially with Valiant right next to her, who is a completely human character. There's supposed to be a difference between how Eddie and Jessica look.
I think the cosplay photo is the final demonstration of the point. That costume would never be allowed on Main Street.
Leave Jessica on the screen. She was deliberately designed to be an over-the-top sex fantasy. And for all the talk about her looking like a drag queen, I would just point out that Kathleen Turner, who provided her voice, DID play a drag queen as Chandler's dad on "Friends." (That IS one deep voice for a woman.)