Maybe. I think it's difficult to tell without the trousers. It looked pretty good in the store but I didn't have time to try the trousers or an L.
There is some serious distortion going on here, probably in the mirror you used to take the shot. Human hands do not look like that, unless you have some weird syndrome, in which case you should go MTM.
Therefore very difficult to offer any sensible comment on this, other than to say the fit across shoulders and chest looks ok.
As I said, there's a problem with my iPhone camera. And I wasn't really looking for comments on the fit, just offering it as additional information since many seem interested in the cut of the jacket, and the silhouette was OK despite the problems with the camera. I have to say that I think it's actually a pretty nice jacket.
Thanks for the comments, gents.