i think your colors look lovely! if you want find a purple fabric and add a border to bring out the little flowers in the fabrics. greens and purples are wonderful together.. though i am so partial to green.. its such a pretty color! dont give up! go eat a bowl of ice cream if you have some and read posts on this site... its what i do to get me motivated again!
Good luck and hope we get to see a finished product of this. thanks for sharing!