This has got to be my favourite flower. I really like the last two. I think the first one would be the real winner if it weren't so dull. Especially that back wall - it looks very grey. Or it could just be my crap internet cafe monitor.
I'd go with Vicky. It does look a little grey. Those last two are good though. I especially like the second photo (first black and white). I like the dof, composition and shades you've got. It's sort of hard and soft at the same time.