Without having seen him prior it is hard to say whether or not it's normal for him... However, from these pics I can not see anything noticeable wrong.. he may be what is known as a copper... they often look black initially and upon further observation you see different colors such as blue and red... Truthfully, aside from the fact that your guy is a Crowntail and mine is a Delta... He looks a lot like The Elusive Mister B...