Tentens BootCut Jeans

GIMP...is hard to handle @_@ (my first attempt at it)! If I hadn't used photo shop last year in school, I'd be rolling on the floor in utter shame I like how Tenten's jeans came out! (I want some cool jeans too...) Not so sure about back rounds. I didn't use layers cause...I didn't know how Her hair looks like a mixture of throw up if you get to close, but everything else seems alright ;;;; Geez...I anyone knows some secrets on GIMP PLEASE SHARE!!!