"terribly terribly wrong" seems a bit much. "not quite right" would be better, in my opinion.
In my mind's eye Eodwine's posture wasn't THAT much different, but if ANY postural change in Eodwine is going to seem important to Thornden, then it's fine.
Both point above are cautions not to overstate things, because they may raise the bar too high too soon. It's hard to build much of a crescendo from
forte, if you know what I mean.
