[...] but now hearing of the renewal of Doriath and of Dior's pride the seven gathered again from wandering, and they sent to him to claim their own. – The Silmarillion, Chapter 22, Of the Ruin of Doriath
This moment always hits me hard. It's the last time they meet, and it just gives me feels!
All of that and more is captured in the story to all things housed in silence by queerofthedagger! The depth of the story was so inspiring for me! Go read it!
To the process:
For this one, I mainly focused on color palette, design, and most importantly, the composition.
They're one family, so I imagine they all come in their family colors. However, a sea of red would look boring. Luckily, the family also wears a lot of gold! Mixing some green into it, we now have at least three colors we can use.
For the design, I wanted to play into their personalities: Maedhros always prepared for battle, Caranthir with extra jewels since he's rich, and the twins being hunters, wearing more simple and practical clothing.
And then there's composition. I wanted to make sure there's still a lot going on and the tension is high, with just them sitting around a table, talking.
Once all of this was decided, it's just painstakingly rendering all of it. :)