The other trees you're using have a higher vamp which I think could help to stretch the shoe length wise and reduce the bowing at the ankles. Some AEs are notorious for bowing though, it might not be the trees at all.
@TtownMD I've seen various shades of brown labeled Vegano Marron, but I'd anticipate it being dark.
Different pair, same style:
Same pair, different light:
Here's albums of both pairs: