It's probably just me, but there's no way that one cutscene took 25 ExAnimations, I just simply can't believe that. Would you mind posting a picture of all of your ExAnimations, just so I can find out whether or not you were exaggerating. I'm sorry, but I just can't believe that that cutscene has 25 animations without proof.
Besides that everything looks great! However, I would make the grass and clouds move with Yoshi, it will just look more realistic... Also, the Title Screen could have a better gradient, as I kind of sears my eyes a tad too much, but that might just be me...
On the topic of graphics, may I suggest editing Yoshi's GFX when he has a power-up. For example, Cape-Yoshi could be a Yoshi with wings, like his Final Smash in SSBB. The Fire-Yoshi could be a red Yoshi with fire all around him. As for Big-Yoshi, well... he can stay the same.
Also, isn't the 3D Yoshi just a ripped Yoshi from YoshiArt.com, you know, the SM64 Yoshi, the one that commits suicide by jumping into a mountain.
Overall everything is coming along quite smoothly, but most of your stuff could use some finishing touches, or else it may look sloppy, and or done lazily.
Which is a trend I've been noticing with most of your work...
Anyway, good luck with whatever you're doing next!