Other than color, it's right down the line for a roggenbier. So your options would be, I would think:
- Enter it into the roggenbier category and hope that color doesn't count against you.
- Bump up the color - Maybe add some chocolate rye, or midnight wheat, or Carafa 3, or just more Carafa 1. Just enough to get to ~14 SRM.
- Enter it into the Specialty Beer category.
Whatever you do, it looks good. Post how your outcome.