Are there no other womens rides done in your area that your group can help with before re inventing the wheel? There seem to be quite a few around here. The big one here is little red, a victim of it's own success LOL, then there is goldilocks and wonder woman, these rides are also 100s though. I think if yours is just an intro for new cyclists, you don't get experienced cyclists interest which is counterintuitive really. I think you should think about your audience and if it is served already. I dunno about there you are, but here any given weekend has competing events. We have winter where I live though LOL.