I like the Bloodhound too! And the Conqueror looks formidable as well. This is just my opinion, but, the weapon pod under the chin of the BA-24 is slung too far ahead of the mecha's center of gravity. And the center of gravity is so high up, that it would make the machine unstable on turns at high speed.
The rest of them look great. But, the Byakee needs a redesign, I think.
Neat concepts. Very nature-inspired feel on the walkers. In practicality they'd probably have to be constantly shifting their weight around, though (especially when firing their heavier ordinance)- the retractable arms seem like a nice touch, just in case they do need to crouch down behind a wall or something. (the VTOL's missle rack is dangerously close to its own fuselage, i think.. ^~; )