Looks a bit like the concept art for the shrine of Mehrunes Dagon. I remember I drew something similar to this once, but never finished it.
Lighting and overall aesthetic is pretty nice, but the perspective looks weird and it's hard to tell what and where everything is in relation to the rest. The knight characters anatomy and overall appearance could use some work.
That being said, the Souls series (Demons Souls, Dark Souls, etc.) is pretty obsess-able, and imo offers a way better game-play experience, take it from a guy who's put way more than 200 hours into both games.