Oh damn, I knew it but I forgot... Erh. Thanks for the comment and sorry, I will take it down.
I really like the style ! But as inphy said it doesn't match the rule of pixel art. You do have a lot of stuff on your tumblr (that I was already following haha) that is 100% pixel art and would have a place here.
It's a fun animation but the tractor beam is a transparent gradient, which is considered a non-pixelart element. That's not to say it looks bad, but transparencies, automated tools and such go a bit against the idea of of having total control over all the pixels.
Thank you, I will take it down.