over the last year charlotte crosby has lost over two and a half stone , but the reality tv has come under fire for this picture in which she appears to be very slim .
her co-stars vicky pattison , 27 , holly hagan , 22 , and marnie simpson have also all dropped the pounds over the past 12 months .
vicky regularly posts then and now pictures of herself to her 1.6 million instagram followers .