I would say there is question marks at the top of the confused -smilie. THose are just so small and it's hard to make the difference, especially when used here. As Buck said, some of them were meant to suit better on white background...
Nevertheless, I like these new smilies.
__________________
"As we all know, holy men has born during Christmas...
Like mr. Holopainen over there!"
- Marco Hietala, the bass player of Nightwish