I really love the colors you chose. I personally like the extra border going around quilts. I would use the burgundy you have going. That would be really sharp - but that is only my opinion. Like art everyone sees things differently...
As far as quilting I'm not sure what to tell you about that. I'm a relatively new quilter and I'm a stippler/design fanatic... I never cared much for the whole in the ditch thing but I know there is a time and place for everything like that!