Another sketch started with lots of leaves still to be added.  I am still not certain of which composition to use and so I will keep sketching until I am really familiar with the subject.  I intend to do some thumbnails again before selecting my final choice.  At this stage i am leaning towards my first sketch of the girl on the left because of her effervescent personality.  To use the three figures would be a challenge skill-wise but I am not sure that it will tell the story in the way that I want it too.
More work and more thinking required!