Why so dark?

I've had Damian for a little over one month however over the past week and a half I've noticed that he has become darker? Meaning it looks like he has more black introduced to his back. Is this a sign of an oncoming shed? Could this be attributed to not enough heat and or humidity? Or is this nothing at all to be concerned about?

If he's getting darker toned over all, it's probable that he's going into shed... pre-shed and post shed pictures are completely different.

I'll post some this evening to give you an idea... my girl 'Cedes actually went through a shed and I got pictures of her before and after.

Hope this helps!

Where are those pics?