Well I have an ideal for an image I want to make: A female character is riding on a running horse. The female wears a long dress that flows in the wind and over her legs and the back of the horse..like this:

http://previews.123rf.com/images/chesterf/chesterf1407/chesterf140700026/30203456-Beautiful-women-wearing-white-dress-riding-on-white-horse--Stock-Photo.jpg

or/and

https://w-dog.net/wallpaper/girl-rider-rider-dress-horse-lake/id/344843/

Right now I'm fiddeling in clothroom and well lets say it aint going so well :P

Anyone got anny suggestions, tips and tricks?