This is not bad advice, though the jacket/shirt/tie there is not too bad.
Don't fold patterned squares. Default to a puff of some kind.
The coat is borderline tight.
I agree that the coat is a bit short, but the combination is good.
If you listen to Vox about one thing, let it be that you shouldn't wear patterned trousers with a patterned jacket. I also think the sweater doesn't go with the coat -- the greens clash, to my eye.