It is nearly perfect, but as you say you hate backgrounds maybe I can give advice a bit... first the brick/stone wall is a bit too high (probably because you wanted it to cover background), if you had taken off maybe 2 or 1 layers of the wall from top, it would look much better. Instead of the wall you could blur it out more and maybe add more clouds/mist, maybe a rocky hill where the castle stands on (even though adding extra elements like a rock mountain may be annoying and more time spent overall I think it would really complete this one)