The mustanger walked forward with a lurch, his head thrown far back so he could look up at Drew from under the wide brim of his sombrero.
With his head thrown back far, the mustanger strode forward.
mnli hypothesis: With his head thrown back far, the mustanger strode forward. premise: The mustanger walked forward with a lurch, his head thrown far back so he could look up at Drew from under the wide brim of his sombrero.