Jeez, bunch of crazy replies in here talking about how you've put her off with your long email that she hasn't even read... wtf?!
Send it again, see what happens - sometimes a girl will skip over a couple of days worth of mails if she gets busy. If she still doesn't read it, write her off as not worth your time and move on to someone different. It can be true that shorter, more to-the-point emails tend to get better results, but yours hasn't even been read, so that obviously isn't the issue here.
Maybe she just doesn't bother with zero-feedback punters, as this is a nice easy way for her to filter out the time-wasters. Unfair but true. Book another girl who's less fussy, you can always try this one again when you've got some feedback under your belt, if you're that bothered.