Regarding their logo, you put a lot of nice detail into the entire thing. The form composing the wings and most of the skull is very nice, but you might want to go ahead and round the jaw a bit. It's kind of rectangle-ish.
Insane ninja craziness right there. As for the robot, I wish I could see more of the body, but of you we're going for a Rule-Of-Thirds type of thing you did really well.
Autocorrect. -.- To resize an image you can usually use editing software and go to Image > Image size. It's usually something like that. Lower the image size and viola!
Well, there are some other tech-ys here that could help you more than I could. I would probably put it in a word doc, then shrink it by the corner, then screen shot it. Hope that helps.