The relative fullness of the Duke's trousers also allows him to create a smooth, harmonious silhouette between his jacket and pants. Compare to Craig on the right, where the jacket and pants form distinct blocks (trousers also cling to his legs, creating ripples).
The Duke also knows that dark worsted suits should be worn with black, mid-brown, or dark brown shoes (although he sticks with the most aristo choice, black). This keeps the focus up top, leading the eye up to his face. Compare this to tan shoes, which drag the eye downward
We also see a more handsome, full lapel. It's a little wider than the classic width—which ends about halfway from the collar to the shoulder joint—but looks better than the anemic lapels we see today. Duke's lapel even has a nice roll (a mark of quality hand tailoring)
Even his black tie is well done. I like that he went with a peak lapel (notch lapels on dinner suits aren't technically wrong, but they miss an opportunity for refinement). A lot of black tie nowadays focuses too much on trying to be different & not enough on tailoring quality.
It's notable that the Duke's father, Carlos Fitz-James Stuart (19th Duke of Alba), is also well-dressed. We can see here that he's not slim. He carries a bit of weight around his stomach, as would be expected for someone his age.
Yet, he also dresses very well by following the same principles. Note that he doesn't wear suit jackets on their own. The brass buttons here denote this as a blazer, a type of sport coat. (2nd pic shows a bit too much shirt cuff, but we'll chalk that up to sprezzatura)
When you're a heavier man, it's even more important to wear slightly fuller trousers, so you reduce the space between your jacket's front edge and your trousers. Trump's silhouette on the left makes him look top heavy. The Duke's father looks more balanced.
You may be thinking: OK, but the Duke and his father have access to some of the best bespoke tailors in the world. It's true that having such access helps. But it's not true that you have to be some kind of aristocrat to dress well, even in tailored clothing.
Examples of men from much more relatable backgrounds applying these same ideas to their dress 1. @DavidLaneDesign (art teacher) 2. @urban_comp (electrician) 3. IG thefoxtooth (realtor) 4. IG therapeuticwhale and @Barima_ON (both writers)
Not only are most of the clothes above ready-to-wear, but some were thrifted or even bought off of eBay. To accomplish the same looks, one only needs to develop the eye, figure out their own fit challenges, and be patient with the process of building a wardrobe.
@dieworkwear I know this is about menswear but her dress has a fabulous inverted pleat.
@lbsmithmd @dieworkwear and heft to the fabric