Hi Hoolagan
That is one nice rose you have.
Off the top of my head here are a few filler ideas;
From the rose you could have some thorned ivy spreading out from the rose. The edges could be wreathed in flames.
Side bars of flames that start from the stem and wreath the rose.
A set of swallows on eitherside circling the rose (true old school style).
Soul shadows spreading out from the leaves, into the gaps on eitherside.
Space seems a little limited but I am sure you will get something decent to finish it.
Take Care
Matthew