Damn, that looks awesome.
Don't take this the wrong way, but sometimes I wished you'd do more historical stuff instead of this sci-fi-thing. Of course, you should do whatever you want, you are the artist, and your skills are undeniable. But I just like historical stuff...
On your last drawing, I especially wanna compliment you on those guys on the right of the line who are running away, and the wounded guy on the left.