What shoe size are we talking about? The 337 last looks very long in large sizes, and the toecaps on the Audley and Belgrave are also relatively large. If you wear a large shoe size, the line of brogueing on the Belgraves will help make the toecap look a little smaller.
Otherwise, I'd go with whichever colour appeals to you more. Personally I'd want to get the Belgraves in dark brown, if this combination was available; closest thing is the Albany