User blog comment:Eren Jaeger/Attack on Titan Episode 7 Review: The Reification of Mankind's Anger/@comment-64.218.242.144-20130524084346

One thing I want to mention is that the manga makes it clear that humans which become titans do not have a true layer of skin but are rather muscular as in the colossal titan. So Eren should have appeared red or more muscular rather than appearing to have a layer of skin in this episode and the anime for that matter.