Very nice . The animation is extremely smooth.

the movements are better now, good sprite! too bad that you have no bg now, but it looked weird anyhow, because the snake was moving but the ground did not. (no scrolling)

OK, I removed the bg so no problem anymore. I also smoothed out the heads movement and unpinned the end of the tail. Thanks for the suggestions everyone!

I'm not complaining about permissions, I'm just pretty sure that collabs aren't aloud here yet. 

Well, Slym asked me to make these for his tileset, so consider it a collaboration.

My gif maker can't make transparent backgrounds, and I didn't want to just have a white bg. I can remove it if it's against the rules.

"Background was made by Slym."

I'm not sure this is allowed 

Yep manuz, that and the tail's tip  seems glued in place - tip never moves. In reality it would be whipping back and forth with a whiplash effect.

Otherwise a nicely done anim. The bg scenery looks cool, too.

 I have a suggestion for the animation. Try to look only the head of the snake. Its motion is not completely smooth, like there is a little twitch when it goes down.

Other than that, the body looks fine.