Man, if anyone would have ever told me animating some dude yawning would tire me out, I'd have called him a bad joker and a lier. x'D
http://www.filz.us/files/b70a46d9/76b/Yawning.swf
1.) Arms became resized a lot. Resizing is not bad when done well(Remember the principle "Squash and Stretch") but in this example, it's way too obvious. Think of the stickfigures joins as if they're mechanical. This means that they have consistent length of the entire duration. Once you get that, it's time for you to exaggerate them to any degree you'd like.
2.) Back is stiff. When he's stretching forward, his back should also bend forward by a whole lot. Try it out in real life and you'll see yourself actually bending it forward a whole lot more than what's shown here.
3.) SFX is lacking. If he's going to sigh at the very end then everything else before that is silent, the change of pace will disrupt the viewers. It's not a lot though and I know that free SFX is very limiting so don't sweat it.
Personal Note: I'm glad that you're actually trying out things that are not the norms here(E.G: Stick fights). It's a great way to practice and improve your movements as whole as you actually learn the concept and give the illusion that he actually is yawning. It's easy to show someone what a punch is but it isn't so when you're trying to show them something that is commonly seen but rarely animated. Good job on this. Keep it up!
http://www.filz.us/view/73486888-34c/
I don't even know if that's how people run
(>_>)
Alright, first things first:
THAT IS A BIG CANVAS FOR A SMALL MODEL! I can barely see the details on the little guy. Next time you animate something as simple as this, make it big or make it fit the canvas so we can all see your mistakes clearly. It's better to learn than to be afraid. Okay, C&C time:
1.) Arms are not moving. Try running with your arms awkwardly stuck in one position and I'll tell you, you'll feel uncomfortable. When you run, your opposite arm strides with the opposite leg and vice versa. As for the "How" on the stride, that's up to you. It's a "Style".
2.) He should at the very least, be bobbing forward and backward or upward and downward as his legs straighten out when he lands his foot.
3.) I noticed that the leg that's supposed to be going forward, actually moves back to the center. This is not how a run is. When you run, your front leg stretches forward, making you look like you're unbalanced but actually, since you're running, the momentum that your body is doing will force it to move forward.
4.) Which brings me to my next point, EASING. When you run that fast, you just don't stop on a single step. You keep moving forward until you slow down and then finally, come to a stop. Make him go forward a few more steps and then let him stop.
Personal Note: Make him bigger. Act out things in real life then visualize, or better yet, draw them on a piece of paper then work from there. I know it's hard as you're still new but you'll improve over time if you know what's wrong and try to work on it. Keep it up!
Kudos goes to you Ipman, for helping out these new animators. I'll try to help you out as much as I can.