For some reason the LE/Special cars can get alcantara all over. I think the idea is that there are less driven but when I tried to emulate this effect my dealer strongly advised against it unless I wanted to have refurb work done. That said, do you have alcantara carpet? That is amazing and protected by the mats and adds a big impact.
Alcantara holds up better then leather in my opinion. Doesn't scratch or mark as easy. Surfaces touched often will flatten from hand grease but you can clean once in a while and it'll look like new each time
What about the roof headlining ???? So many cars miss this. Spend 10's 0f 10,000's on the interior but dont change that Crappy Standard Garbage that looks and feels like scotchbrite.
Also IMO you havent done much carbon interior . IMO its all or none. How about a full leather LED steering wheel or colour coded with the rest of the theme ?