Adore how you've drawn the characters in this, especially Audrey (who happens to me my favourite of bbmbbf's so yay! XD); think their eyes are beautiful (love the little sparkles in them, particularly the blue ones in Cathy's), and I quite like the way you've done the highlights in their hair especially the soft ones in Cathy's. Cute poses too to boot, and felt the soft changes of colour in the sand is a lovely touch for the background.
Many thanks for sharing! :)
Adore how you've drawn the characters in this, especially Audrey (who happens to me my favourite of