Look's fine to me as it is
, if it were mine though i'd change the saddle to a black one, probably a flite, i've got the same forks as you on my LTS (b1's right ?) but mine only have one disc mount.
Have you had to replace you're pivot bearings ?, Also how do you find the clearence at the chainstays with the 2.3 tyre on the back ?, i've got a 2.1 on the back of my LTS at the moment, thought about going wider but look's a bit tight in there at the moment.
Yes your right about a black seat thought the yellow one looked cool when i first got it but not sure now.
The forks are B1's always found them to be a very capable fork and handled everything i have thown at them
.The pivot bearings are the originals and are as good as the day i had them this is my 4th STS and still yet to have a problem.Now the clearence i have on the 2.3's is just perfect no more room for anything bigger but i have always found the STS rear to be slightly more spacious than the LTS sounds strange i know but i have an LTS as well and i can't get a 2.3 on there for the life of me