A sense of down to earth romance emanates from this composition.  White roses sybolise love and unity, purity and innocence.  The white rose on the right side looks like it is being 'offered up' to the other. White roses also represent honor, and have been traditionally used to say 'I am worthy of you' In this composition we have the object of desire represented as the white rose of purity and innocence in the foreground, with the honourable admirer offering himself as worthy of that. 

In ancient times roses were placed at a door at times when privacy was required.  Always regarded as highly personal and symbolic, roses were hugely popular within Roman society.  Many emperors and the elite importing them from Egypt.  In this composition we can see a temple behind, with the swirl pattern of the Nautilus Shell above.  Both the form of the Nautilus Shell and the Rose being considered representations of natural perfection in ancient times.  Their 'perfect proportions' being known as 'The Golden Section'.  These perfect proportions also being used to build the temples of Greece and Rome.  All of the elements within this canvas art represent purity, innocence, love, beauty and perfection.   Combined, they create a symbolic and romantic composition.