Well, you're only going to get so much out of two frames.  It mostly looks fine, but the highlight in the legs should probably stay on 1 side, whereas you have the highlight starting on the outer edge and ending up in the middle.  She has no groin.

Another thing that comes to mind as I look at your animation again, you would benefit from offsetting your arm animations.  Delaying one of the arms by one frame will result in a more organic look.

Definitely not bad but I would recommend playing around with his hip position on the horizontal axis.  It's one of those things you'll have to try and out see.  The hand movement looks like its as good as it needs to be but its a bit obvious that the legs aren't moving.  Keep in mind that us bipeds generally tend to keep the majority of our weight on one leg at a time.  You'll often see idle stances consist of alternating between which leg carries the weight.  Also keep in mind that during that process, the hips rotate slightly.  Sometimes it's too difficult to portray the rotation with limited pixels though.  Keep up the good work.

Thanks man,  no updates on the alien landscape since the last post I made.  It's still a WIP for sure, but I didn't really have any plans for it so I am focusing on assets for the game I am working on.  Anyways,  my discord is SchweeDubulus #2768 and I'm always down to talk pixel art.

Hey,

So I am working on a game, and any good game needs environments!  I consider myself a decent character artist and animator but I am really struggling with environments.  While I enjoy the critiques on this forum, I think I would benefit more from an informal online buddy who is willing to take a look at my WIPs and brainstorm with me on improvements.

I don't think I could offer money at this point unfortunately but if you help, I will certainly return the favor one way or another.  Hit me up on Skype at schweedubulus if you think this sounds interesting to you!  Thanks a ton guys!