Yo, looking good man! Nice to see more visionaire projects.
Some thoughts on the campaign.
Put on your cover image something more eye catching, like the close up of that girls face screaming. Need to remember the thumbnail will appear on Kickstarter.
Put on the cover all the formats you're going to release one. Super important, especially if you intend on releasing on LINUX and MAC. There are less games released on those formats so you pique more interest.
Put subtitles on your video. Please don't take this the wrong way, but you'll find that people have issues with understanding accents. I had to also subtitle my own video because of my Australian accent haha. Also the music is quite loud, so its harder to hear.
Otherwise thats all I can see so far, good luck