I can only speak for myself, but I can tell you why I don't like either of the two pics you've included in the spoilers above:
The first has a white linen square with a coloured border. I have one myself (red border); I almost never wear it. I find these squares a bit naff, to be honest. So that already marks it down. Beyond that I just don't like the scale of the windowpane in the suit; I prefer a slightly bigger scale one, like in Betelgeuse's suit from a page or two ago. Small windowpane suits are too "neither here nor there". Small difference, but enough for me.
As for the second look, I tend not to like non-solid grenadines and that looks suspiciously like one (and if it's one of those ties that's part-smooth/part-textured, I like it even less). More fundamentally, there isn't enough life in the look for me: the dark blue of the tie is too similar to suit, and the grey is also too low a contrast to it. Add in the pale blue shirt and it all feels a bit sleepy to me.
By contrast, the pic you showed today features a more interesting colour palette and some genuine interplay between suit/shirt/tie. It is engaging, without shouting, which I suspect is pretty much how you like your clothes to look from what you've said previously. I wouldn't call it innovative or brilliant, but it is genuinely good.
All the above is foetid mix of subjective prejudice and perhaps a dash of more objective colour commentary, so take or leave as you see fit. But it does explain my position.
Appreciate the explanation. Yes, I like to keep things simple and conservative while looking classy. Your explanation definitely gave me a good understanding. Now I have to go gather my thoughts.