I did a little more tweaking here and there with the same pencils as before and intensified the colours. I've tried to work very lightly, pressure-wise, so as not to saturate the paper and allow the subtle nuances of different pink and red hues to show through. The stem and leafy bits are a tad more yellow-green than is showing here.
All of Lauren's roses have now wilted and gone so I'm glad I snapped all those shots of them. Lauren likes this pic so I'll frame it for her as a keepsake. I didn't do a background on it (chickened out!) but I think it's OK as it is.