Only one thing I did wrong,
Stayed in Mississippi a day too long
Warning: Spoiler! (Click to show)
I like the cloth of that jacket a lot, but I submit that the overall silhouette would look better if it were a bit longer (such that there's the same visual distance above the button as there is below it). But I think that could be up for discussion.
I like that you're doing the same thing as @justinkapur's recent-ish gray suit fit: wearing lots of cool colors and then warm shoes, and it works well for me – though it does look a bit like the trousers are a much warmer gray than the jacket, which can be tricky to combine. A darker, cooler gray might look better to my eye, but it would go against the grain of some SF wisdom. Also, while I have no problem with that tie there, strict coherence would demand something a notch or two more casual, like a dotted knit, some kind of foulard, or a repp.