Your stylistic choice is brilliant in two ways:
1. Obviously, simplistic drawings are easier to animate.
2. Style is shockingly similar to the scale-model dinosaur diagrams on Wikipedia. I don't know if this was intentional, but it's cool for a dinosaur fan like me to see.
Animation is smooth, the details such as the waving tail and lurching, heavy stride are present in the T-Rex. These details weren't applied to the raptors, but that's OK because they're relatively small in comparison.
FUN FACT: The largest discovered dinosaur was an herbivore, weighing an unbelievable (even by dinosaur standards) 122 tons, and it's spine was 60 meters in length.