Wow, this is just so cool! Very photorealistic, and not just because the background is a photo. I love the castle and all the greenery. Really nice job!
Fantastic and intriguing image. It doesn't quite "fit" to my eyes, but it's hard to say quite why. It lacks atmosphere, maybe. The castle is great and the greenery and the background... everything looks great, but... but... something.
The roads seem too wide and well-paved maybe. Where are they going? The house at the bottom looks unlived it - not disused, but too perfect to be lived in. I guess the roads make it look a bit like a carefully landscaped park area - not landscaped in terms of formal flower beds, but planned with planted, well-maintained trees... I guess it just seems an odd place for a wizard's castle. (I'm tempted to wonder how planning permission was obtained!)
I think I'm being hyper-critical, though. Maybe this just doesn't speak to me personally. And it really is extremely well executed. So take what I say with a large barrel-load of salt!