You look like a small guy to be wearing fx armour, its almost drowning you there!!
But with a bit of work you can make it work. Some pointers for you;
Start with the ab plate and butt and kidney plates. Get the ab plate low as you can with out it hanging around your knees. Lower the butt plate alot, until it really covers your butt. I would trim some off the top of the kidney part so the upper back plate does not cover so much.
Then try to get the chest and upper back plate as high as you can so that it is comfi and not cutting into your neck. Seriously think about trimming the bottom of the chest plate to show more details and the ab buttons.
The legs look good to go, there are in the right place and if anything maybe bring the thighs in a little so they dont look so much like board shorts, but they look good as they are.
The arms may need trimming in length, and either pad the biceps with foam or i would trim them to slim them down a bit. Can you put on your lid on in armour? If not trim some off the forearm so you can. No more though.
And i know you dont have the shoulder bells on there but if your using the fx ones i would expect you may need to trim about an inch off the bottom so they dont cover all your bicep armour.
Do all that and report back for duty