Halloween contact lens/eye color advice?

Hi! As Halloween I'm doing sort of an Alice In Wonderland gone wrong thing with some friends, and I'd like some violet contacts to go with my costume.

I found these ones:
http://eyecandylens.com/index.php?main_page=product_info&cPath=68&products_id=1312

I love them! But I'm not quite sure how they'll look on my eyes? Do you think they'll look okay? Or should I go with some silver ones?

These are my eyes: (Sorry for low quality.My eyes are almost all green with yellow in the middle)
>>> Halloween contact lens/eye color advice?