@ultimus482animations I made some quick examples of idle animations of MC. its not the best idle, but i think this is a good enough to give an example to show beginner mc animators on how to make an idle.
first, we got the beginner idle which is just a head bop fnf looking ahh idle. this is for if you wanna make a quick animation or you are just lazy. what I did wrong in this animation is that it moves a bit too fast, and the head moves diagonally. what i recommend doing is that to make sure that mostly the head moves up and down, and not diagonally, nor side to side, and to make the ease in and the ease out a bit more slower.

and then we got the advances. example 1 shows and idle that i would use for a person doing extra movements (looking behind, moving hands, etc…), and example 2 is an idle i would put for a person just standing still, mostly when smoking a cig, where they combust and die of lung cancer.
im gonna use example 2 for this one because it looks he most similar on your last idle animation. look how little he moves. if you would look at each 3 frames starting at number 1, they aren’t much distant out of each other. because of this, i then used ease out using the tweening tool to make the animation you see now. your animation had a bit too much distance, which was why it had so much movement that it looked like as if it was moving like the banana flavored and the apple flavored animation from blocktales (if you catch my drift). i know its hard to do this in mobile but try your hardest to move it a bit shorter distance away from its original spot while also not moving it too far. i also recommend on when tweening the idles here, just press the tween button 3 times per keyframe because that was how many frames away was it from my original poses for the idles.

this may be hard, for it will not be as perfect as it imagined. when I made the idles, i was really annoyed that it didn’t look the way i expected, which is why you have to stay patient. I’ve seen people make a god damn hour or 2 just to make an idle animation (it was like 2 minute long animation so i can’t blame them), and you could see how annoyed he was when the idle animation would move too stiff sometimes because they are the most annoying thing to animate as a beginner (in my opinion) so just patient and take your time

I hope this helps even if it did just a tiny bit
also i will try and make the body of UltX tommorrow so keep an eye for that 🙂