The moon...defenitely the funnyest part to do...I got a book this christmas that had these HUGE pictures of the moon (I think the size was A2 or something...), and I decided to make use of them (if you see the animation, I wasn't planning to the moon like that, in the begining). Using the book as reference, I pixeled the basic shapes, and then went to the details. To do the rough texture, I dithered the whole area I wanted to pixel and then RANDOMLY erased it. That way I got those dither paterns (not actually paterns, but ya get my point, right?). The only thing that I think that's wrong with the moon is the fact that it is too defined...when seen from faraway it looks kinda blurry. But that would've probably make me use some more colours, and I didn't want to surpass the '4 colour' limit I imposed myself.
About the eye...which one of them do you mean? HER left or OUR left? Both of them seem wrong to me, but I wasn't able to do them better so...the lip thing must be just due to prespective

Thanks for the comment CAG, I wish to get some more though...