Did some more futzing with this (trying to go for more of an ESB look), and I tried a couple new things. I didn't like how the lower lip dipped down so much, since it's usually pretty flat across on the costume, so I warmed it up with a heat gun and pushed the lip up a bit. It's a pretty hard plastic so you don't really have to worry about it turning too soft.
And I also took some of the excess lighter hair from the feet, pushed it under the eyes, and draped it down more like it's supposed to. And then sprayed it with a bit of hairspray to hopefully lock it in place.
Oh and also, it appears the eyes are on stalks of some kind, so if you dig in a little tool or screwdriver you can push them out to the side a little more to remove a bit of the cross-eyedness (although not all of it unfortunately).
And I also took some of the excess lighter hair from the feet, pushed it under the eyes, and draped it down more like it's supposed to. And then sprayed it with a bit of hairspray to hopefully lock it in place.
Oh and also, it appears the eyes are on stalks of some kind, so if you dig in a little tool or screwdriver you can push them out to the side a little more to remove a bit of the cross-eyedness (although not all of it unfortunately).