^ in that specific picture, the ensemble looks great but the fit of the jacket has an issue to my eye that I hope I can explain...either the jacket is too short, or the buttoning point is too low, or maybe a combination of both. With the height that the buttoning point is at now, it looks like the jacket below the button needs to be lengthened a bit to balance it out. Or, if the jacket length is fine, the the buttoning point should be slightly higher. It just looks like there's too much jacket above the button, and not enough jacket below the button.
EDIT: my comment was for Tom Miler's fit
Do you think your issue with his jacket could be because of the crease created by the pulling on the button? I don't think it is too short, or the button stance is too low. It might be on the edge of "too much" for either, but I don't think it goes over the event horizon. I do think the crease, and accompanying shadow, might give the illusion of it being too short by breaking up the silhouette. I dunno, just a thought. What do you think?