Alright. I finally have the time and oomph to alter a waistcoat I got A YEAR AGO!!!
I really like the look of it but it does need to be shorter.

Here is how it looks in general:


Now, here are my two choices for altering it. The yellow line for a small curve on each side or the white line to echo the shape that it already is???



Also:

The Kilt I am wearing in the picture is the one I wore to my wedding, so I refuse to get rid of it. But it is now too big for me. I've lost enough weight that even on the very last notch of each buckle it slides down through the day and is really loose.
How easy is it to take 1.5" - 2" inches off of it without making it look dreadful?


Thanks for the advice!