I gotta say I like the idea of this mashup. That scene from Jurassic Park is one of the all time greats, IMHO. It's right up there with the Luke vs. Vader fight in Empire, the bike flying across the moon in E.T., the gold statuette and subsequent rolling boulder in Raiders, etc.
Oh, what's this? Someone left a perfectly suitable grammar/writing soapbox here. Well, let me just step up here . . . oh my, this is a small box. I guess I'll just have to concentrate on one of the many errors, the last sentence, which is "Fast." It should be fairly evident that "fast" is not a sentence. Instead, I believe it was the author's intent to modify the verb of the preceding sentence so that the rex's stride was quickened. In other words, that the rex quickly strides, or, in better words, that the rex sprints, or bounds, or rushes.
"B-but Mr. Yahtzee, sir, this is shirt.woot, not The Effing Atlantic, or the NY Times."
Let's look at it this way; if the write up were math expressions instead of sentences and you came across this "3+2 5=10" You would immediately cry foul and state that there was a missing addition operator. Similarly when you read "look in at them through wagon flap." You should cry foul and say, "you mean through the wagon flap!" Also, if you saw 3+3+3+3+3+3+3+3+3=27, you would say, why not jut put 3x9=27? In like manner, "peers down, from high above," where else would you peer down from? Do you peer down from a moderate height? Nope, the descriptive is redundant and unnecessary.