Alien/Slime Sprites.

[Mushi]

Well, recently I've been lurking this site a lot, and have only recently decided to post something

Only recently I've started trying hue-shifting, and other techniques, so I decided to make these guys to experiment with colors.
Well, here they are.
8 colors, not including transparency.
Some parts I don't quite like myself are the thick outlines on one side, but I want to keep that kind of effect. (I'd find an example, but I'm kind of in a hurry typing this)

Also, I'm not sure what colors look better, the green, or purple.

So, I'm looking for constructive critism on these guys, thanks! 

[Mushi]

Sorry to double post and all, but does anyone have any critisism or anything on these guys?

[fucbillgates]

Here i did a quick edit of the first few
sprites.



I changed the shading around to help make it more
readable at 100% zoom.

[Mushi]

Thanks a ton, those are awesome!
I will try edit all my guys to look a bit more like that.

[Lizzrd]

hey mush, you should work some on the shapes of the 4th and 7th, they look kinda flat.

[Mush]

Someone say my name?

Anyway, I think the magenta color used as the darkish shade on a couple of them is too harsh of a contrast compared to the other shades.