They are too long for him. They were probably cut for him when he was much younger however, so a change in posture brought on by age, as well as other factors like loss of body mass may have some effect.

This is one of the problems of bespoke suits. The tailor doesn't just take measures, he also accounts for posture and other physical attributes/anomalies, humans are not symmetric and any changes in posture can throw the fit right off. A good tailor accounts for this however, by leaving sufficient inlays in the seams to accommodate for alterations.

The too long cuff could turn into a big fix depending on certain factors, like the cuffs having working button holes for example. If they do, the sleeve will have to be shortened from the top, which means taking the sleeve out and potentially re-cutting it. A big job, and very skilled work.

I have several Tonik mohair suits, and they aren't what I call lightweight, they're quite stiff and have a rough hand. Visually, beautiful stuff though, especially in dark colours. Black Tonik cloth is a thing of beauty.

A Dark Navy/Black Mohair suit, white / off white shirt with simple Stirling Silver cuff links, simple toned tie (a discrete pattern if the thought of a plain tie leaves you cold), black, highly polished, Chelsea boots is probably my favourite look.

Everything pared back, a very sophisticated look IMO.

Well the DoE is dressed more modestly than PoW, which I like