if you're the one that wrote the text its kinda easier to make it out if you already know what its supposed to say.
I do think that even though these are done in a lazy style, a little work on letterform and readability in your text would do you well.
Also if you actually want critique (you probably don't... so i'm sorry i guess)
With the backgrounds, even though you keep the background the same in every slide, if the characters are moving or the camera is shifting to the left and right, but only the characters are moving in the panel not the background, then what this does is, at first glance make it look like you're just moving characters around at random. This is most apparent in the comic with Arakune or whatever (i've forgot his name) the black thing made of bugs.
Now im not sure if you can do that, since ur backgrounds arent made by you, but perhaps you could crop it differently in each slide to show this, or not use the whole image in the first slide so later u can crop a different section to show the camera is now to the right etc.
