You should only keep appealing pictures, always bear it in
mind that you are only as good as your worst picture! Models
should aim for quality not quantity.
Avoid using 2 pictures of the same look and feel. Black and
white is the Industry's favorite. 9 x 12 " are the standard
size.
A basic but versatile portfolio would have a casual head
shot, styled head shot, body shot (conservative swim suit or
lingerie) a fashion shot (sexy) action shot , an editorial
shot and even a catalogue shot. As you gain experience
replace the older picture with newer ones. Keep your best
pictures at the end to leave a last impression. Do not wear
jewellery for those prints; it takes the attention away from
you. The wrong choice of under garments may show panty line
or bra straps and will distract the viewer