I wouldn't worry about the boots...personally...but I agree that your legs are something to focus on! Work on bringing them back underneath you!! Rainy is a pretty girl. :)
Also, I'm not an expert by any means, but circles and poles and circles and more circles will help with the bending :) Leg pressure helps as well, using your leg positions to HELP her figure out how to bend. Keep workin!
A horse is the projection of peoples' views about themselves--strong, powerful, beautiful--and it has the capability of giving us escape from our mundane existance.