It probably fits you better than all of the other stuff you have posted here. I don't know why you wear a silk square with a suit,I'd stick to basic white linen pocket squares for suits and save the silk squares for odd coats,heavier coats with patterns,tweeds and such.
I don't know...with the peak lapels looking so sharp, I think the silk softens the look a bit.
UC, the vest and coat are great, but your shirt collar looks gigantic. Less would be more, especially with the small scale of the vest and the skinny coat lapels.
Totally agree with you on that. I grabbed it without thinkin (well, it was the last clean blue shirt I had, really) and thought, shuuuuuure, that works. As soon as I posted it, I realized I got that shirt in Italy back in '02 when big ol' windsors were all the rage Oh well.