I absolutely love the aesthetic. It feels like something from a Felix Colgrave project. The only negative I have is I feel like some parts of the castle are more detailed than others, though I am not that good at perspective, so I can't be sure, but some parts feel like they need more detailed lighting to match the rest of the castle.
The background is great I don't have any problems with the background. It looks really nice and it helps the art look a lot better.