Nice work. This is off-topic, but I have to say it since I keep seeing this; your textures are actually shown at 25% size, since 512² is 25% of 1024², not 50%
How come when I tell photoshop to resize my 1024 image to 50% it gives me a 512? Is everything messed up?!?! -,- Cool uav, mang. Text is backwards on the opposite sides, though.
looks really good man, normal map is really effective. as to the texture size, 1024 holds up great, if it was flying around in game it would probably be downsized to 512 anyways. The only thing I would maybe suggest is a little more variation in the values of in the spec to break it up a bit. dope work man.