My thoughts on that last photo are whited out below:
On first look, I naturally assumed it was Carol, looking very dead. On second look, however, I can not tell whether that is a man or a woman??
I don't think Carol is dead, because the show would be cutting short a big a for character development (Carol and Daryl confessing/acting on their feelings). On the other hand, Carol's death could lead to some interesting development for Daryl's character. But I still think it would be more compelling for them to actually be open about how they feel before one dies.