Ok, here's what the Advice man has to say-

I know a lot about reading fonts. See the font I am using to type this? It is a type of Helvetica. Do not use that font you used in your project because it is a decorative font. Decorative is HARD TO READ. Also, use proper grammar in your text. Instead of saying "it is the 22. of November 1963," say this, "It is November 22nd, 1963." The computer will read either 22nd or Twenty-Second the same.

I think you haven't given respect to JFK. Therefore saying, you specifically told the audience, "His brain tissue flew out." This is disrespectful... don't do it, especially for school.

What do I think? It's boring, it has no music, it needs an intro menu and replay menu, the graphics such as the ambulance and R.I.P. are floating in mid-air which is poor art, and the text is hard to read.
GJ-3/10-10/10=RESPECT FOR JFK

Stupid Ambulance

Dude, honestly...
What kind of ambulance drives with it's door still open.........

....

Speech synthesis was interesting a decade ago, but it's not all that interesting anymore. All it really does it make a product feel more amateurish. I would recommend either recording your own voice, or sticking with text.

A menu would also be nice, rather than having an infinite loop.

If this is for a school project I'm not sure "and some of his brain tissue flew out" really fits well.

Good Luck!

never saw that footage before

never saw that footage before, but this isnt what people want to see (on a site like this, AT LEAST), and unless intentional for a character, (or no voice actor, like i imagine you dont) dont use those synth voices, and maybe a start button, in this case, no looing