Awsome costume! Congratulations!
But ...
- the dreads are too long --> AVP style (cut them a bit)
- bind a cord on the upper body (like on the pic)
- your blades, they would look good on a Wolf-gauntlet, but not on a P2 (replace them)
- take some spines off your trophy, so your Predator will look bigger
- the lower leg-armor looks like a unit, folder the lower-end of the shins, so you got some room between them and the knee-pads
What's next on your P2-weapons list? Spear, cutting-disc, plasma-cannon, rebrather?