Kurt,
Your master figures look great. But I agree with McWong and Michael that at this point, your Kickstarter is doomed to fail. My advice follows. Some of it is harsh, but I'm only bothering to say anything because the figures look good, and could well succeed if you take the time to do this right.
I seriously recommend that you cancel this Kickstarter, and spend some time studying successful Kickstarters as Michael suggested. Then, re-launch, but next time around put more time and effort into having a polished presentation.
There are many things that should be fixed, and if they are not, will ensure that this project fails:
The sculpts look great; you need to put pictures of them on the Kickstarter page (there are pictures in the video, but not everyone will click on the video.
Use proper capitalization and grammar. Using lower case "i" all the time will make people think you are an amateur, lazy, and disorganized. Seriously, learn to capitalize. Even your name is not capitalized properly on the Kickstarter profile. Fix that.
Your posts here reflect the same sloppiness. When you are promoting your project, you want to come across as professional, well-organized, and attentive to detail. (It's "losing," not "loosing," by the way, unless you are loosing that money out an orifice.)
Random figures for pledge rewards? Terrible idea. Let people choose which faction they want. I guarantee you that this problem alone will probably mean you get zero pledges, and certainly will not get funded.
What are the factions?!? Have pictures and a description of each.
As Michael said, your pricing makes no sense. £10.00 GBP gets four rifleman. Fine. £25.00 GBP gets four riflemen and four grenadiers. This means grenadiers effectively cost £15.00 GBP for four figs: why so much more than the riflemen?
Same thing for the NCOs, but even more so: £50.00 GBP gets you four riflemen, four grenadiers, and four NCOs. Since you can get the four riflemen and four grenadiers under the £25.00 GBP pledge, this means the four NCOs cost a whopping £25.00 GBP Why?!? You are not Games Workshop. You can charge a small premium for command figures, but not 2.5 times as much as the rank & file troops.
What Michael is saying is that the price per casting should be lowest for the largest pledges, and highest for the smallest pledges. That is not the same as "giving more models per pledge." Figure out what the minimum price per model you can charge and still succeed, and use that price for the largest pledge levels, then increase the price a modest amount for the smaller pledge levels.