Really smooth animation. His feet or toes could squash a little when he puts pressure on them. I don't know a whole lot about animation though.

The toes unfortunately don't have a lot of controls on them. I wish they did, because all i could do to make weight was to spread out the toes, so I feel you on that. I might see if there's something little mor e I can do, but the rig itself is a realistic in its rigging so theres not a lot of squashing and stretching that i like to have in a rig. Thanks tho!!!

Awesome! The only thing I'd say about it is between 0:06 and 0:10, well that'd be impossible to do - such large animals would never have been able to jump/skip irl, one foot would have almost certainly always had to touch the ground, a lot like an Ostrich, skip to 1:24 on this vid to see what I mean: https://www.youtube.com/watch?v=AozXE7p06-w
Hope this helps! ^^

I followed an ostrich and cassowary for my main references, and the skip thing was actually a mistake originally that I turned into a "stumble and run" when it cycles into the run cycle. I know it's not the most realistic thing, but I tried to make the weight work as much as I could since, hell, we don't actually know if they couldn't jump, lol. I'm not certain how to transition into the run, since transitions are hard. Any suggestions?

Transitions are definitely hard! Try checking out some horse walk/run transitions for reference. Their hind legs will be similar enough to an ostrich's legs that you should be able to use it as reference, plus horse reference is probably way easier to find online.

If something is not quite reading correctly, it's always better to scrap it entirely than try to fix it, unless you're confident you can really sell your fix idea. Remember "clarity" is one of the most important principles, and unfortunately I don't think that "stumble and run" is reading clear enough right now. I'd axe that and just go for a clean walk/run transition.

If you're going to keep that jump though, definitely get some more up/down action on his hips. Down before the jump, and a slightly higher apex during the jump.

Dang it, I meant for my comment above to be a reply to a comment of yours....sorry about that!

Overall, this is a great start and I hope you keep going with it!! :)

The walk feels pretty good but I think the timing/spacing on the run could use some work. He's a big, heavy beast so his moves in general are going to be slower, but the timing feels pretty even on his legs right now and maybe too slow overall. I'd pad the moments where his feet are on the ground/just lifting up with more keys and take away some of the keys where his foot is in the air/descending back to the ground.

One more big note though that I'd suggest you address is that roar. To put it bluntly, those are some pretty weak poses for an action that is all about strength! Power! RAWR! His head/body goes down and stays down during the roar - those key poses make him look more like he's cowering or submitting to some other creature. Honestly though it may be cliche I'd still have his body go forward and up, throwing his head back and opening those jaws as far as they'll go to sell that roar. Look at other creatures that roar. Get up and roar yourself and observe your own posture when you roar. Sometimes the most obvious/common pose is still the best pose. And you can always add some character/unique bits to the breakdowns and motion "within" that common pose (dip his head low in anticipation of the roar, or have have his whole head shake side to side a little as he roars, or have him roar so big he has to take another half step forward to catch himself from leaning into the roar too far, etc).

Looking forward to seeing more!

https://www.youtube.com/watch?v=Q3iElEt-k4g
^^ Their heads stay down for the most part in roars. Most incantations I've seen do the same. I understand what you're saying, and there were somethings I woulda done to make it more powerful myself, but the rig doesn't allow it (the neck has some pretty bad controls, and I can't get any real squash out of the chest that I'd normally want for such a movement). I'll scrap the pose in another file and see what I can do to improve it. I wouldn't want him off balanced was my main concern when making him roar, and there's a lot of nothing in terms of support for them near the front despite all that bulk in the chest/head. Would make me think they need to stay relatively back? Just to support their weight? At least with a ostrich they have the benefit of a very small head/neck so as to just have to stretch out.

I'll play with the run, but even the gold standard ( https://www.youtube.com/watch?v=rxqHVoZ0fzc ) runs pretty slow, so it's hard to say. There's not a lot of good ref for speculative creatures since ostriches/cassowaries are the closest living thing, but they're no where near as heavy. I'll see what I can do.

In your reference, the head does goes down in anticipation of the roar, yes - but there is only "upward and out" motion on the head during the roar itself. It's head at the end of the pose is quite elevated - at least as much as Trex's can go. You can push his pose more "upward and out" without making him completely off balance. ((Well, I'm only assuming/hoping you can as I do not know the limitations of the rig!)). Right now the majority of the roar is occurring while his snout is facing downward - making it feel awkward.

And the timing for the run may be fine - I'm talking more on giving the spacing on the legs some love, making them favor contact with the ground more overall and give them less time in the air.

Rad. Gimme a day to fix it as I have work today, but would you mind if I shot you a Note with a link to the file to see?

Sure thing! :)