Changed up the waistcoat and pants from the last outfit. I don't know why contrasting colored collars/cuffs on dress shirts aren't a thing. I think it looks great!
Imo the blue on only the cuffs/collar doesn't work as well as two different blues might (light blue base on the shirt with darker on the collar and cuffs. I think it just looks a little incomplete? Having your bold colour on the tie or under the vest usually fits better even if it is much more traditional.