Now that I'm finally done with it, I'll dare to present this latest (and most probably last) work of mine to you, even if viewing the numerous amount of outstanding maps here in the forums makes me feel rather mediocre about my own mapping skills.
I must give credit to the Edain mod team at this point, since without using some of their assets (especially the modified Cirith Ungol towers) this would have been impossible to do for me.
This was of old Tol Sirion, a beautiful home of the Noldor in Beleriand and residence of Finrod. After Dagor Bragollach, it was captured by Sauron and became a place of horror, infamously known as Tol-in-Gaurhoth, the Isle of Werewolves.