I liked the characters, and I felt that the story was well developed, along with the storyboard, camera views, etc. Voice acting was great. My only suggestion is to work on animating the characters consistently well; many scenes were great, but there were a few that didn't have enough facial expression to go with the emotions of the characters, or sufficient body language. Additionally, avoid simply rotating characters without changing their arm and leg position.
Other things to work on: Rex's eyes stayed vertically still, when his upper face was clearly moving, in certain scenes when he talked.
I also felt that some of the backgrounds could have been more detailed, or for the ones that looked fine in detail, seemed a bit sloppily drawn.
Anyways, it was overall a good movie, and I really like the style/appearance of the characters- it has a nice comical feel.
Characters were well developed. Rex even sounded that fat guy from two stupid dogs. Even if the animation wasn't top notch, voice acting was very good and it was very entertaining. Thanks for putting in the effort!
Dinosaurs are one of those magical ingredients that can make anything awesome :D
The art style was very nice to look at and the voice work was excellent.
There was a couple of tweaks to some bits that could have added more to the animation (Maybe adding flames to the dinosaurs where they were in contact with the lava and making the cape more swooshy)
But It'd be a bit rubbish of me to be nit picky because at the end of the day I was entertained for 6 minutes,
(I liked the "BC" gag at the end)
Awesome job dude, I look forward to seeing your next animation.