It can be tricky, but you want the plates to be shaped to you, while retaining as much of a standard look as possible. The trick with that generally winds up being when you're placing them on your vest; make sure all the plate edges sit flush with your flak vest (or flight suit with thighs, knees, and shins). The shaping of your plates look like they mainly need a little tweaking - you should absolutely not need any major re-shaping.
