CaaaaaaAAAhhhhHH!!!! It is I.Wow, you've been studiously grinding away at this thing. Even faithfully updating the thread. Very good. Sorry I didn't follow up earlier.
Huge difference in now and then. You're really taken it up a notch! And in a short time. Just think where you'll be in a few months if you continue at this rate, man.
Background elements are interesting/stylized, but I'm not concerned with those.
Feathering texture is so much better. A much better sense of volume now.
Just one real crit for now. And it's something you won't want to do, but it's hurting this the most now - the eagle's form. Now that you've got the rendering technique under control, I think you should attempt an edit of the eagle's form. He's still lookin' like a hawk.
I simply grabbed one of the really nice ref pics already posted here and traced the important lines, put them in the middle, and then superimposed them onto your latest version for an obvious comparison. While your eagle and the reference eagle are in slightly different poses, it's obvious there are some flaws going on. Eagle's have a rather unique look - they're sharp looking, dangerous. They just look mean. Mostly because their beak looks like an armored barbed weapon, their head is hunkered down into their thick neck giving a tough look, and that angular forehead is sloped forward, bring their head to a point. It's all rather subtle, but it comes together to make the "eagle look". So far, yers still lacks this, looking too "soft" and "nice". I hope you follow.

And of course you realize, that these basic compositional things are always sorted out as much as possible before any fine detail is pixelled in, so you're not spinning your wheels, having to revise something's basic lines only to have to re-detail it.
But, I really think you've made enough progress on the details and rendering to go back and fix your fundamental composition/form-related problems now. When you redo, if you choose to revise, you'll do an even better job the next time. For me, that always takes the edge off of having to redo something like this - it gets better with each iteration.
PS. you can't really force crit out of people around here. Interest can feign quickly in these parts.