Ecellent!
You really captured the moment!!
You really managed to get the right minifigures I could recognice them all
But i ecpecially love the winding staircase and that the cave is looking really big!!
Nicely done Melonkernel!
One thing that intrigues me about this creation is that if you compare it with LotR creations from what I think of as the "main rush" of LotR-themed MOCs, is that it shows the ongoing incorporation of new figs and parts. Most of the LotR MOCs I remember seeing date back to ca. 2004-2005, when I first came online, or from earlier. So you tended to see a lot of Star Wars parts from the pre-flesh days, some Dark Forest, Fright Knight, and KK1 elements in the figs, and Harry Potter elements to make up Dwarves and Elves.
While this "tradition" isn't exactly gone, melonkernel's interpretation here obviously hails from a later era: Viking shields, Fantasy dwarf and wizard--and peasant torsos, for example, to say nothing of bley vs. ol'grey. It's a comparison that I like seeing, because it demonstrates just how much Lego has given us in the last few years.
As to the MOC itself,I think you've captured well in a "bignette" sort of way the scale of Moria, and it's general feel. I'm left, as I often am, with the realisation that 9 characters are hard to pose interestingly in a single picture--Tolkien clearly didn't have movies and Lego in mind when he wrote. As far as that goes, the uniformity of the Hobbits--and baldness?--is a bit lacklustre, but you've done well with what you have to work with, I suspect.