It's not easy to decide witch is the best composition. It depends in wich context we have to see them. The third composition is not one of my favorites buth the other ones all have there charms. The last two compositions are the ones that draw my attention. Two totally different expressions on here face, almost 'wild' hair, showing a little skin without being sletty and the light seems to find a nice angle.
thanks for your opinion! i will try to decide thanks!