I wish I had some money to pledge to your project, but I'll share it to my friends (none of them are much better off than myself though).
One thing I can say, I've seen a lot more successfully Kickstarter campaigns that use their video as an opportunity to directly talk to the audience. Sit the director and some of the main cast/crew down to talk about the project. Like why you are making it? Maybe a little bit about yourself as filmmakers? etc.
Projects like those go over very well. That is what I think you might be missing... the personal side of it.
One thing I can say, I've seen a lot more successfully Kickstarter campaigns that use their video as an opportunity to directly talk to the audience. Sit the director and some of the main cast/crew down to talk about the project. Like why you are making it? Maybe a little bit about yourself as filmmakers? etc.
Projects like those go over very well. That is what I think you might be missing... the personal side of it.