I would've probably made the lighter part a tad darker too, but it's better yea.

Thank you, updated it, hows now?

I agree with Jabber about the detail progression. Good job! Though perhaps in the upper left corner I would've used darker shades...?

Thanks, Not me either I must say.

 This one looks more natural in terms of the detail progression than most of the other entries, at least. I'm not really a fan of this particular challenge, I have to say.