I love your One Block Wonder quilt. Yes, some of the bigger and bolder prints do show off the pattern more, BUT it's always nice to see a subtle soft version.
For the boarder I would pull one of the bolder colors. Me being a red lover, that is the direction I would go. But the blue could be interesting to. OR do a small blue then a wider red/wine/burgundy (it's hard to tell which shade you have).
As far as quilting.... hmmm not sure. Maybe just a all over meandering.