Your ab plate is looking good, though you will better tell when you have bent it to your body.
The point at the top of the belly plate will stick into you as soon as you lean forward, so you may want to round that off a bit.
Your best bet now is to start test fitting the plates.
Remember though, your vest will have a lot of give in it, so you may want to ensure that it is made next. If you are looking for Official Status, T-shirts are not part of the CCLs as vests. I used vinyl matting that I got from a hobby store, made the templates and got someone good at sewing to get it together.