Really nice work here. You've done a good job of replicating the claw weapon with Technic beams, even down to the self-righting wings. The armour looks pretty tough too.
As others have said, it's a bit too slow (although I personally have no issues with the speed of the claw). I'd love to see this MOC revamped with speedy skid-steering wheels on the outside, just like the real thing.
My only other issue is that obviously the claw can't really crush things, so I wonder how effective this entry would be against other entries. I guess you can trap them and push them around, but otherwise this feels less like a Lego battlebot and more like a Lego replica of a battlebot.
Apart from that, great job and good luck in the contest!