+1 imo the tie doesn't have to agree with the shoes, but it helps that one of the top block elements does. e.g. the belt Max contrast with tie. This fit is far from great, but a chestnut tie wouldn't have worked with this SC.
Hi Ac, imo a slubby dk brown Shantung would be nice, like pic below (navy Fresco). Hober doesn't do Shantung, but his rough silk might do the trick. There's no brown, but there is charcoal edit: and a plum which would do navy well imo
Looks great if you want a 1970s 'body-shirt' (without the polyester). imo if anything it's already too tight. 'Perfectly', when it comes to shirts, doesn't mean like a second skin. You need a bit of space so you can move without popping buttons, esp at the belly when u sit.