Sketching in pencil on toned paper with hilights

Heres a sketch from a photo (Mick and Bianca Jaggers wedding from a colour supplement!) took about half an hour and really got me back into drawing again. I very rarely do artwork outside of a computer and its about time I learnt to draw! This is just a 2b Mars Lumograph on Canson grey paper with white chalk highlights, not a very good photo of it...