So this would be from that period where Cable was travelling in the future with Hope, after she was a baby but before they returned to the present and he died. Or something like that. Cable's timeline is… complicated.
Anyway I'd say they've nailed the look here and there are more photos at the link.
I question the actual strategic value of this pose, but it is very true to the comics.
Marvel Comics Cosplay — Cable and Hope Summers by Eoghann Irving, unless otherwise expressly stated, is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.