Warning: Spoiler! (Click to show)
Sorry dude - but as best I can tell from that photo the shoulders are about 2" too wide on each side. This cannot be fixed without a total redo.
Sad ,but true.
I really should stop skim-reading SF; one starts to transpose letters.
Loving these colours; their formality contrasts nicely with the slightly more casual windowpane fabric.
Not bad at all, but could be improved easily so worth making a couple of superficial no-cost suggestions:
1) Different tie. The green is too acidic for the rest of the look. If you wanted a statement tie, a darker green would paradoxically actually have stood out more, while not overwhelming the look.
2) Top button could stand to be unbuttoned. This is purely personal preference admittedly, but I think for a fun evening out sort of look, as you're going for, you could stand to unbutton it, especially as it buttons a little high anyway.
3) Again a bit of personal preference, but next time you need to buy new shirts, try looking for ones with a higher collar, and possibly a fractionally narrower spread.
Leaving aside fit issues which are hard to judge from photo angle, I like the colours of the jacket and trousers together. As with gyasih above, there are a few simple things that would improve the overall effect:
1) The shirt lets the look down, as it appears "dowdy", for want of a better word. A button down in a solid pale (white, cream) colour may played better.
2) you could afford to undo a second button when going casual.
3) I don't get the pink square. You're not the only one to use pink squares in outfits/colours like this, so maybe it's just an aesthetic blindspot of mine, but I just don't find it enhances anything about the look here.
It's just a relatively tight double-4IH; keep practising, and don't be afraid to tighten the knot.
Having said that, it works well for PG (and one or two others) because the rest of their clothes fit correctly. It does not work for a few others who've tried it because of its success on PG, and where it's then added randomly on top of a relatively worse fitting outfit. In that context, it comes across as if they can't tie their knot. Use a standard 4IH (or other standard knot) if your clothes don't fit well enough to sustain the quirk of this particular affectation.
This photo reminds me of one of your earliest photos on SF, with one of your older Armani suits, which I think you wore with the same tie (or a very similar one). While everything fits better now, I always liked that looser aesthetic on you; it's interesting to see how you've developed a look that combines better fit with at least some of that old looseness now returning (esp. through the legs, arms and some of the other proportions). No matter how much one plays around with shapes, I think there's a deep-seated and hard-to-shift internal preconception of ourselves that drives our choices. Sometimes we're happiest when nourishing and refining that self-image, rather than always pushing to reinvent it. Anyway, I'm rambling. Nice look.